Seems that whatever postgres does when favoriting a post is really fragmented on the disk for some reason. This is what a fav sounds like, recorded on top of my postgres server (mind the fan noise):
After months of not working on the renderer and doing very invisible refactors, I’ve written something that I can post screenshots of: alpha-to-coverage! That’s right, my renderer now makes use of bleeding edge technology (from 2007).
Screenshots: