I find personally.. There are those who give silly answers.. Very true! Humor is a significant part of some peoples personality.. That being said.. I've met some intelligent, well spoken folks that give great, well reasoned answers. Not all questions/answers/comments will be on point.. but that is no different than most other sources. This is a site of ones opinion, experiences and personal knowledge
A lot of answers are pretty good in terms of perspective. Some questions though are so "silly" that "silly" answers are required. And some people make a comment just to comment. But honestly, I have noticed that most good answers come from the first 3 selections off a google search, and it isn't that hard to google something.