to be honest I might as well say this now before stuff gets worse: there's really nothing to worry about. absolutely none of us are treating v20 as being any superior to v21.
if you were to think of it, we're actually probably bringing more attention to the game, if anything: I'm very sure that if we weren't sharing v20 right now, those who are playing v20 atm wouldn't even be doing anything related to blockland. you're saying that they'd be playing v21 instead, and that we're taking them away from v21, but to be honest there's like 20% of people who would apply in that group. the rest (including myself) wouldn't even be playing blockland at all if it wasn't for v20.
so I'd appreciate if we just stopped making a fuss about this, as really we're actually bringing more attention to blockland as a whole by doing this. we're even benefiting steam users by letting them experience a part of the game that they had never experienced before. there's honestly little negative impact on blockland and there's even (admittedly) barely any activity on the v20 master server anyway (compared to the v21 MS), so I'd honestly appreciate if you were to stop worrying.