But isn't that against their TOS !?
And also super silly seeing how the amount of exclusive files to Demonoid versus most public trackers (and even some private ones, Bitsoup.org comes to mind), well the amount of files is not drastic enough to have people pay for an invite.
Then again, if someone sends you BTC for it, I guess that defies this way of thought
Agreed about the the amount of files, maybe it's a security thing for people in certain countries? I've just seen the posts for demonoid.me invitations all over this forum and I have like 0.001 bitcoins in my wallet so if there are certain people who might need it, I could use the profit.