I wrote about this on a Tor thread.

https://news.ycombinator.com/item?id=47279518

It looks like Hetzner is Tor (and Tor adjacent) friendly, I suggested this might affect IP reputation, 2 users responded they had no IP reputation issues. But it looks like that wasn't quite the whole story

https://community.torproject.org/relay/community-resources/g...

It seems that Hetzner holds 7% of the Tor network. (if I understood the table right)