As a previous member I'm still waiting to actually make some profit. Once (and if) I do, I might consider signing up for another week. Still holding my coins from a couple of weeks back as instructed, waiting for them to go up so I can sell without going minus.
Have to admit that before you explained over PM that this was not the case, I thought the "x% profit from coin y" posts reflected how much a member could actually have made a given week from that particular coin.