It has to do with property and liability. All digital landowners including Lemmy, Mastodon and other social media work very hard to make sure they don't get sued by lazy users 'unaliving' themselves looking to sue for perceived damages and or promoting illegal content by their presehahahaha im just fucking with you but could you imagine some fucking boomer writing something like this

Culture behaves like a gas and expands to fill any space it is provided with

it's Gen Z slang, might have started as evading censors but it's just how they talk now, just like OK started as a joke abbreviation but now everyone says it unironically