@Gargron Yeah, it scales pretty well, at least on my side. Some other instances might have performance issues.

Over here it's like +1000 users or >50% more within the last 4 days, according to https://the-federation.info/node/nerdculture.de

Still room for more. CPUs are doing well, storage is ok, etc...
So, 👍 for the performance of Mastodon as a software! 🙂