At some point this instance should stop it's indefinite growth IMHO. Centralizing users is not in the ethos of lemmy. ~~I think once it reaches the size of lemmy.ml it should close to new users.~~

EDIT: Ok, there are a lot of good replies here. Maybe reaching the limit of lemmy.ml shouldnt be the limit, but my overall opinion still stands. This instance should consider a theoretical limit where further growth could be detrimental to the overall network. I think celebrating being the largest instance shouldn't be a metric that is considered good in and of itself.