An encouraging thing to do is to leave a message for the user to whom you give a trust point and to tell that user why you gave it. Most users are not only happy to receive the trust point, but also to get the message!
No there is not.
As of now, there is no way to see who gave you the trust points. So, unless the person who gave you the trust point left a message to this effect on your message board, there is no way of knowing.
Currently there is no way to find out who gave you a trust point.
2,000+ Trust Points on WikiAnswersThe following 45 WikiAnswers contributors have all earned more than 2,000 trust points (figures correct as of July 18, 2012):8,981 trust points - User:Marcy5,653 trust points - User:USCitizen5,643 trust points - User:RoyR5,189 trust points - User:Macky5,011 trust points - User:Clay5,009 trust points - User:Aggie804,893 trust points - User:Ranger224,893 trust points - User:Dlmick4,646 trust points - User:Joncey4,622 trust points - User:Crystal4,474 trust points - User:Keats4,181 trust points - User:Chris3,978 trust points - User:Ksmail3,880 trust points - User:Neila2223,781 trust points - User:Viper1usmc3,730 trust points - User:Quirkyquantummechanic3,560 trust points - User:Redbeard3,428 trust points - User:Grevillea3,315 trust points - User:HisPowr4U3,147 trust points - User:Deb3,136 trust points - User:Jadeacres3,103 trust points - User:elosery3,065 trust points - User:Delltechie2,997 trust points - User:Brave32,967 trust points - User:JEK2,874 trust points - User:Ganderton2,850 trust points - User:On_the_Wallaby2,831 trust points - User:Englishangel2,779 trust points - User:Katz22,625 trust points - User:Sdresh2,622 trust points - User:Schnazola2,614 trust points - User:Dfoofnik2,587 trust points - User:Myrab512,561 trust points - User:Emdrgreg2,557 trust points - User:Simplemary2,516 trust points - User:Blue2,514 trust points - User:JayKay2,487 trust points - User:Natural_Val2,427 trust points - User:TrishaR2,306 trust points - User:Robbb2,285 trust points - User:An8thg2,138 trust points - User:Tina2,083 trust points - User:Squirrel_Man2,046 trust points - User:Hooweestik2,038 trust points - User:BaldfatguyNOTE: THERE IS CURRENTLY A PROBLEM WITH THE TRUST POINTS BEING GIVEN. THIS ANSWER WILL BE UPDATED ONCE IT'S FIXED.~ Top 100 All-time Contributors ~Click on the Related Link, further down this page,to see the list of the Top 100.
It sort of depends what you mean. You can get trust points from people that you have given them to, but most are given at random and you never have an idea who gives them to you. The people with many trust points that I have given trust points to never knew, unless I told them and then sometimes they would give me one also. The PC answer is that you get trust points from answering questions, But I suspect the greeters get quite a few from the people that are new when they receive a welcome message from the greeters. I know I gave my greeter a trust point even before I gave myself one. However to answer your question you could give trust points to every contributor you see the link for and never get one back. After you have given a trust point to a contributor the link changes to send message because you can only give each contributor a trust once. That is the only way anyone can tell for sure if you gave someone a trust point and only you can see that your link has changed. There are no rules against letting someone know that you gave them a trust point and if you let them know the reason you may find that many people will also give you a trust point back. Some reasons could be I liked your answer to " ??? " question, or I noticed all your contributions to the site, or I noticed ??? about your bio page. That is probably the only method that giving trust points can also get you trust points. Now if you were asking if you need points to be able to give them you don't need any trust points to be able to give hundreds or even thousands. The only thing necessary to give trust points is that you click on the link to recommend contributor.
They're good. They mean that someone liked an answer you gave.
3,000+ Trust Points on WikiAnswersThe following 23 WikiAnswers contributors have all earned more than 3,000 trust points (figures correct as of July 18, 2012):8,981 trust points - User:Marcy5,653 trust points - User:USCitizen5,643 trust points - User:RoyR5,189 trust points - User:Macky5,011 trust points - User:Clay5,009 trust points - User:Aggie804,893 trust points - User:Ranger224,893 trust points - User:Dlmick4,646 trust points - User:Joncey4,622 trust points - User:Crystal4,474 trust points - User:Keats4,181 trust points - User:Chris3,978 trust points - User:Ksmail3,880 trust points - User:Neila2223,781 trust points - User:Viper1usmc3,730 trust points - User:Quirkyquantummechanic3,560 trust points - User:Redbeard3,428 trust points - User:Grevillea3,315 trust points - User:HisPowr4U3,147 trust points - User:Deb3,136 trust points - User:Jadeacres3,103 trust points - User:elosery3,065 trust points - User:DelltechieNOTE: THERE IS CURRENTLY A PROBLEM WITH THE TRUST POINTS BEING GIVEN. THIS ANSWER WILL BE UPDATED ONCE IT'S FIXED.~ Top 100 All-time Contributors ~Click on the Related Link, further down this page,to see the list of the Top 100.
Many contributors have zero trust points, so it would be very tedious to find and list them all.
No, not really; you never know when someone will read your answer. It may be months after you wrote it. In addition, people give you trust points for other things such as a great bio page, or helping with editing and organizing things. You also never know who gave you a trust point, unless the person who did so leaves you a message on your message board to tell you about this.
Unfortunately, no. Unless the user messages you and tells you that they've given you a trust point.
Other registered contributors who like your contributions and think they are helpful. You are unable to find out who gives you the Trust Points, unless they message you to say so.
Unless the person tells you which question they gave you the point for, there is currently no way to tell which contribution earned you the trust point.