It has! At least on the web, if you view user profiles - but most of the time they’re pretty useless because in the comments they’re scaled down to text size. And the Lemmy clients don’t bother with them at all. Communities do have icons which are at least more widely used and supported.
In the days of yore, Roman generals, upon conquering new lands for the Empire and receiving highest cheer and adulation from the crowds in Triump, would specifically assign a slave to whisper to their ear, at the height of the ceremony, “remember that you’re but a mortal.”
Spez is like “fuck that nonsense. If I keep kissing enough asses at bigger tech companies, maybe I’ll get a blood donor virgin dude of my own. And then I’ll live forever!”