There was a lot of crashes, random deaths from the environment, a bug that could crop up saying your character was dead but they weren’t causing disconnects that required MySQL editing the map database to fix (you couldn’t get on long enough to recreate character even). Thralls instantly died from pretty much everything (bug or not). And even if you could get on without bugging out, crashing, or falling through the world, there was nearly only a third of the players we have today to play with.