A website with a userbase comprised largely of some of the dumbest and laziest retards ever to walk the planet. Most are people who can somehow figure out how to use Y!A to post questions, but can't figure out even the most basic aspects of a search engine. Others want you to do their homework for them. Still more ask questions about policies of certain companies that could've been solved faster if they'd just gone to said website or picked up a phone. Many are largely unintelligible with spelling, punctuation, and grammar that would make an English professor weep. There are angsty teens, clueless middle-aged people, and senile old people. While some people ask specific and smart questions, the vast majority of posts are asked by people who can't even figure out how to figure something out themselves. The same applies to answers. Some are insightful and useful, but most are just idiocy.
Essentially, it's a site where retards can ask retarded questions and get answers from other retards. It's a horrifying look into what happens when technology puts evolution in reverse and allows people who would have been culled from the herd long ago to survive and procreate. If ever you want to see the abysmal, stygian depths of human stupidity, look no further than Yahoo Answers.
Idiot? That guy is Yahoo Answers-grade stupid!