Well, I used to think like you. Well, not exactly, but along the same lines. I used to spend all day at the computer *****ing about life to myself and everyone around me. That was just laziness speaking. I know it's been said already, but life is what you of make it. Until you get off of your ass and do something about it, you aren't gonna get anywhere. If life is so "pointless," then what do you have to lose?
There's no such thing as a general "meaning of life." I guess life is more of an individual escapade, if anything. Sure, there's the basic stuff - Food/water, shelter, and sex - that everyone has to deal with, but there's also a whole lot more than that. You say the only good thing in life is love, which is sort of true, but love doesn't only limit itself to a relationship between two people. You've just gotta find a passion. That's what life is all about. Now how is THAT ****ed up?
Sure, some of the individual techniques taught on this site might just be manipulative, but if you bothered to look past that, you'd see that this forum is actually about self-improvement. It's about changing your whole outlook on life for the better. A lot of this does have to do with the basic necessities. You've gotta take what life gives you and make the best of it. These "manipulations" just turn lemons into lemonade.