Seeding on BBT is easy, it just takes a while. I can usually reseed most torrents to 1.0 within a month or two of downloading them, and when I have 7-8 torrents seeding, there's usually at least one of them uploading at any one time.
It's way better than places like AnimeBytes which have a seed:peer ratio of 220:1, and you can seed a torrent for months without uploading a single byte of data. BBT's 18:1 is quite good compared to some private sites.