You can't give answers trust points as such. You can give other people trust points, whose contributions you believe are worthwhile and legitimate. You can give trust points to a user by clicking Recommend below one of their answers, or on their profile, by clicking Recommend below their stats.
Trust points are earned - for providing quality answers to peoples questions. Anyone can award a trust point to another contributor. Sadly, some people see them as 'status symbols' and not as recognition for doing something useful !
It is other users who give trust points. They give you these points for seeing useful answers you have submitted.
Yes, most of the answers on WikiAnswers are legitimate answers. You can tell if they are legit answers by the user's trust points. ID's do not have trust points, and you are taking a chance at taking their answer as legit since they do not have trust points. Most of the answers on WikiAnswers are in fact legitimate answers.
Trust Point "earn" other contributor's and readers' trust and respect for the quality answers you give.
If you are talking about wiki answers points (also known as trust points), you get them by recommendations from members.
Trust points are awarded for detailed, factual, worthwhile, legitimate answers. If you answer questions in this way, you are likely to get lots of trust points.
On the Wiki Answers website, trust points are earned by giving good answers. Members then leave one trust point for writers that they think deserve it.
We are all different, and there is no fixed schedule for trust points. The main issues are: how many answers do you post, and how good are your answers?
You can't really do anything with trust points on this website, but, it can show you and other people how dedicated you are to the site, or it can mean that someone liked your contributions. The more trust points you have, the more people start to trust you, even if they are not a user on this site. If you have more trust points, when you answer questions, people are more likely to trust that your answers are credible.
you get recomend yourself once and get a free trust point. Otherwise you have to have really good answers.
Trust points are given by the Readers of your answers. Each member can recommend a contributor once. Answers are counted as contributions.
Trust points are given by other readers of the site. If you write informative, accurate and useful answers, then more people are likely to give you a trust point. Some categories seem to generate more trust points than others so getting a lot of points should never be your sole or most important aim here. Just keep writing useful answers and the points will follow.