I get that this is a satire post on the usual criticisms of Mastodon, but honestly the points on Email is valid, and the reasons are a big point on why non-business Email usage is declining…
Especially the points 'there's no real way to migrate between email servers either, so whatever I choose is going to be my permanent home' and 'I can't run my own server' parts are very valid criticisms of the Email system…
I do like the way BlueSky lets you use your own domain much like hosted email providers do - presumably your account should be migrateable to other AT protocol systems as a result (eventually, hopefully, caveat, caveat).
Especially the points 'there's no real way to migrate between email servers either, so whatever I choose is going to be my permanent home' and 'I can't run my own server' parts are very valid criticisms of the Email system…