There's plenty of good advice on here if you ask a question in straight-forward manner. Also, what a lot people fail to realize is that good advice is often what we don't want to hear. We don't want to hear that our abusive girlfriend or boyfriend is not good for us and it was time to move on three years ago, not now. We don't want to hear that sometimes guys use girls for sex and girls use men for money/attention/emotions, etc. The problem isn't a lack of good advice on GAG, the problem lies with many people not wanting to listen to the advice they desperately need to hear.
As far as I know, people give solid advice on this website. You have to realize that this is the internet so if your question is not short and concise, you're not going to get any solid answers, if any at all. It seems to me you're looking for a place to have others tell you what you want to hear or you're looking for one-on-one council.
Well, there are a number of people that give solid advice, but there are also many many people who do not. Unfortunately, those who do give good advice are not going to be online all the time. What's more, is they are not going to have an answer to every question asked.
You also may want to 'look inward' here as well. I try to contribute advice whenever possible, but it's also true that when I see a question that has been asked a hundred times already, I don't bother. You may want to use the search thing and see if your question has been asked before. It's possible that it has. Further, the anonymous thing: some people are adamantly against answering questions that are posted anonymously.
Anyway, what I would recommend is finding people who give solid advice and adding them as friends. It increases their chances of possibly looking into questions you had posted (again, they can't find them easily, even as friends, if you post anonymously).
I think I've gotten some pretty decent advice from GAG, but most recently, the best advice has been from the friends I've made here. Personally, I will answer a question if I think I have a good answer for it, whether it's a serious question or a just-for-fun type like what you mentioned.