There were a few people here trading some memberships to various trackers in exchange. I know RU is popular, but this site is actually not a good place to talk about this kind of thing, as the message forums here are very well indexed, and if we start talking off topic about, say RU, and you are looking for an RU invite, and google that, you will likely find this forum, and by posting another message in it, you are punching it up higher on the google search list. Eventually a flood of people will be coming here as a source for invites, or at least asking for them.
I likely sound like a moderator, which I am not, but I have a lot of respect for this board, and a better way to go about it might be to contribute to the forums for a while, get known and to know, and talk to people in PM's that you have met about this kind of thing.
There was someone who asked before, but he was a user that had lots of friends here, it wasn't someone just showing up and asking for something for free as their first posting.
Before I do anything I ask myself “Would an idiot do that?” And if the answer is yes, I do not do that thing. - Dwight Schrute