I had a very good surprise when I logged back in today, my balance was no longer 0 but a bit over 0.1 BTC. Although smaller that I expected, I must admit I have no way to check if it's correct or not. My Blades were on auto-pilot in late October so I didn't follow my balance on a regular basis. As I said earlier, I will assume good faith.
Therefore, thank you 50BTC for not being a "scam pool" after all, I just erased my negative feedback. As far as I am concerned, your efforts are appreciated and I will consider mining again on this pool (I had founds at least 2 blocks I think, but they're no longer in the stats).