Answers that aren't correct or are just "nonsense" are removed because they are unhelpful. It means that someone who does know the correct answer can see the question as "new" and can answer it with the right information.
Unfortunately, vandals are also responsible for deleting good answers which is known as "blanking". If you see a question where this is the case then you should either report it in the community forum or to a supervisor who can fix it.
No, not in the least. Millions of people have found answers to their questions here.
There are some automated answers, but the vast majority are answered by real people like me. Many of us have answered thousands of questions here. You can answer questions too, if you see any you know the answers to. That is how all the people who regularly answerer questions here started.
Although most people that use this site are very good with their answers, you do get some people that answer questions incorrectly or place nonsense answers on here.
The people who visit here love answers to questions, and Answers.com has the best Answers!
Most people who answer questions here will answers them based on the best possible answers they can find or know. They will provide answers that best relate to the question being asked.
We do ie the people who want to and look on here as I found out.
If you are wondering how many people there are here to answer questions, there are quiet a few different people.
I hate wiki answers I came here for answers to a questions not to answer question!
Some people will put stupid answers in deliberately or do some other things with answers, but the vast majority of answers are given by people who know what they are doing, who use the site as it is intended to be in a responsible manner, and so give very good answers to the questions asked. There are also people working to fix or remove the stupid answers and other things that people put in that should not be there. Just as there are irresponsible people in any aspect of life and on the internet, you will get them on WikiAnswers, but they are by far the minority. Most people here that answer questions are sensible, responsible and intelligent people, who put in correct answers.
Anyone can answer and/or edit questions here. There are probably thousands of people who contribute to answers, some more frequently than others.
People get bored, they want to make questions, they want to mess with your mind, they want to see what the answers will be.
Men and women answer questions here. People are of all ages, sizes, weights, etc.