@badlogic@julian for those who don't automatically delete their old posts (admittedly the majority) but your server evicted them anyway, it can be seen as a way for each server (both the software and the specific instance) to decide how they want to manage the growth of their community. I view the fact that the protocol allows weighing these tradeoffs and making a decision as a good thing though if I were running an instance I'd probably allocate the resources to keep them around indefinitely or not run an instance at all. But that's just me. All of this is for posts, of course; media is a whole different story.
I like the fact that if some product decision regarding media management, thread display, database choice, frontend design or what have you is irritating enough for enough people, a new fork will show up taking things in whatever direction they think is best.