SPAM for one ! I don't care much for the drug test questions much myself and usually nail them. I don't think this is the place to ask how to cheat on a drug test. I don't like nonsense questions much either. Get's kind of old after a while. But it seems that the majority of questions asked are legit and it's people wanting others opinions or facts.
I think any question that involves ways to break laws or get around a legal responsibility should not be posted. There was one awhile back asking how to get out of paying child support. Thankfully everyone here pretty much told the guy off.
The ones that have very obviously been posted from textbooks and the person is simply too lazy to do the work themself, however I agree that sometimes they don't understand and just need to be pointed in the right direction.
I agree with Rooster on the drug-test-related questions.
The endless "these are my symptoms, am I pregnant?" ones are always annoying. The answer is always the same: Do a pregnancy test or go to your doctor!
The ones that are completely nonsensical. Grammatical errors, typos or oddly phrased questions are fine (especially as some people are posting in their second language) but there are some that just make no sense at all.
Ones that go along the lines of "I was in class and I saw this guy looking at me and then I looked away but I think he didn't and we talked by my locker one time and he said that he liked basketball what does this mean does he like me?" - cant they just say 'how should I find out if my crush likes me' and the answer is always. JUST. ASK. THEM.
Medication questions. First it's illegal to take medication that is not prescribed to you. Secondly, if someone is asking here they did not come by the pills legally. Because a pharmacist or a doctor would go over drug interactions and side effects. Third it is illegal for a lay person to give any medication counselling. All questions can be answered legally and safely by a health care professional.
Am I pregnant?
Does he/she like me ?
How to make money fast ?