I didn't really come here for relationships, but it's helped me with my shyness, ironically. IRL, I hardly talk, but here I have to get used to articulating responses and conversation with strangers (rather than the people I'm comfortable with) and that in turn has actually made me talk with people better.
Not exactly what the site was designed for, but helpful nonetheless.
It has helped me to realize that deep down guys and girls aren't that different in a lot of ways. I've realized that guys actually do hurt and have emotions too...they just show it differently than girls.
Its not GAG who helped us, Its people who USE gag to help us. Now I have seen people, who, give useless and baseless answers just to earn exper points. But on the other hand, I have also seen some good answers. So yes, there are good and bad opinions out there. Just filter them according to your scenario :)