Maybe I should clarify with "each user successfully spun up..." I'm mostly curious if the 5000 microservers trying to federate is a more sustainable access pattern than 5000 users hitting the website.
Since federation is an async process, it can be optimized on both ends in a way that user browser requests cannot.
At the same time, federation would overall result in more bandwidth being used because not every user wants to view every post in the frontend.
Possibly failure, because setup isn't just a simple or of box plop. And i can't see how pings from 5000 microservers is better than 5000 users looking to register? But that's more of a question than an informed opinion
save