The analogy works to some extent, but it is a gross oversimplifications in most regards. But yeah, keeping up with maintaining a small mail server if you expect not to continually end up in SPAM is a royal pain.

Will be interesting to see how it develops. Could see a movement towards RBL type block lists, but with the lack of tools available at the moment I think most admins are going to end up having to take some pretty drastic actions at times.

I’ve been looking to do the same for the many pros I’ve seen posted here, but maybe someone can give me some clarity on a very big downside to me.

From my understanding most instances are pretty liberal with federating anyone, then blacklisting bad actots or problematic instances. However as adoption grows is there not the potential for larger instances to move towards a whitelist, and possibly move towards only federating with known, established instances or ones with established conditions? Possibly flat out banning personal instances due to moderation overhead?

Perhaps my understanding is incorrect, but seems to me that there could be a big future risk your personal server turns into an island and all of your past engagement is no longer in your control.