Yeah, it would be cool to have a time-limited server like that! In practice I think it would be exhausting to admin, though, since you'd have a large population

Yeah, it would be cool to have a time-limited server like that! In practice I think it would be exhausting to admin, though, since you'd have a large population of newcomers and a very small population of experienced users to teach them the tools and culture. My advice has been to just pick an instance and try it out, and then migrate to a different one after a month if they see one that looks like a better fit.