Smogoff tends to be more of the joke-y side of the forums, but a serious inquiry begets a serious answer:
The advice I try to give people - and to myself when I'm joining a new space - is to join ongoing conversations, rather than trying to spin up a new one on your own. Add some of your own thoughts when people are talking about the game, or comment on a tournament game that other people are watching, or just compliment the steak that somebody posted in general chat. Participating in whatever's going on is the key to getting integrated, rather than trying to shove your way in. Eventually people will start recognizing you, and friendships can begin to develop naturally from there. It's a long process, but so is making friends offline.