It was a link to this video https://www.youtube.com/watch?app=desktop&v=JksaTKdpgNM&list=PLZ3iRMLYFlHsF2AppZDY7p1wGK0BwahuZ&index=106

With the comment “What do you think of the first answer in this Q&A? Please only answer when you watched the whole 20 minutes and are interested in a genuine discussion. You can ignore this post if this doesn’t apply to you and I will ignore all comments that show that this doesn’t apply to you.”

There are many different laws with different countries. Don’t forget that most (if not all) Fediverse instances are run by people in their free time with donations that just cover server costs. They aren’t LLCs so there is always the concern about legal issues. Not sure if that is their motivation but could be part of it.

No but I believe there is something on GitHub to help subscribe to the same communities once you create a new account.