@janeCMD - What @TheTrader said. I'd also like to add a few things myself.

Tons of stuff gets uploaded i never heard off, almost nobody is downloading that.

That's totally subjective. There are millions of solo artists/formations around the world. You couldn't possibly know everything. One man's trash is another man's treasure.

Tactics which worked on WCD and Waffles dont work here. I downloaded only newest torrents less than minute of age and got download activity on one from 10 downloaded

Auto-snatching is kind of frowned upon there, with some exceptions. That may very well be the issue in your case.

The interface is very hard to navigate, is completely broken on mobile phone. Color scheme is just not good for orientation. I've seen much better attempts with gazelle.

If you're talking specifically about the mobile version, I agree. But keep in mind that the tracker's still an infant. Cut it some slack. It'll improve with time.

This tracker seems for me not designed for average music lover.

It's most likely not for the average music lover, yes. Then again the average music lover doesn't even know what lossless is.

My personal tips for ratio improvement:

1. Fill requests.
2. Upload free (or paid) music from Bandcamp in FLAC, then convert it to 320, V0, V2.

Good luck.