Didn't know that was the case...
Anyways, after searching through the discussions, I've found out it's actually (and suppossedly) good to go, since I'm not using any autojoin, just a join button directly on listings (slow connection, can't afford to go navigating through everything) and an automatic reply.

Also, thanks for your suggestion of asking myself anything, it's always a good idea to keep oneself curious and imaginative, in return, here's a piece of advice for you too: keep it to yourself.