The ratio system is baaad, yes, but what does that matter if you're not punished for a low ratio?
If anyone there is rude to you for having a low one, then they're idiots. Seriously.
I always keep Demonoid in handy despite it being a low-level tracker. Since it has a large filebase, it's great for finding things you want/need to redownload. A common treat is that some files on higher-level trackers found their way on Demonoid; thus, you can download it there instead and cross-seed with no negative effects on the higher-level tracker.
Don't underestimate the Demon, I guess.