It would be impossible to say.
(See the Related question for a list of contributors who have achieved a minimum of 2,000 trust points.)
Your total WikiAnswers contribution points are calculated as the sum of all of the contribution points you have earned. These include first answers, edits, organizational actions, questions asked, and community contributions. All of these points come under the heading of "Contributions" in your WikiAnswers profile. Trust points are slightly different. Contributors do not directly earn these points through their contributions; they are awarded trust points by other WikiAnswers users. Therefore, trust points are not counted as contributions, and do not add to the contribution points total in a WikiAnswers profile.
No. As of now, you can neither lose trust points, nor take them away from another user.Trust points cannot be deleted by anyone; once a trust point is given, it cannot be taken away.
Trust points do not entirely help you get hired to work for WikiAnswers, since actually getting paid to work for WikiAnswers is different from the amount of trust points you received online.
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.
The numbers beside the usernames are Trust Points. Trust Points are points given by other contributors who think a contributor has done an outstanding job on WikiAnswers. The amount of points is the amount of people who trust you and your contributions. There should be a 'recommend' button by your name if you made the last edit in an answer. You can recommend yourself once. To advance your Trust Points, just make high-quality answers and/or contributions to WikiAnswers and someone is bound to trust you.
When they have answered a question (probably that you asked) and given you all the information you were looking for.
There is no limit as to how many trust points a person can earn on WikiAnswers. Currently, the highest number of trust points held by a person on this site is well over 8,000.
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 have.
Currently, the WikiAnswers system of trust points hasn't changed - you can only add trust points, and you can only recommend from a question the user has answered by going to the contributors tab and clicking "recommend".
No, you are not able to hide your trust points from other users.
No, neither giving nor receiving trust points count as contributions.