IRC is so much more robust than it used to be.
Miraheze (good free wikia hosting site) and Opensim (secondlife server emulator) both have IRC and use this web app called "Libera Chat". It is suprisingly robust and clean. I havent made an account but I can still see both of the IRCs I connected to.

#IRC #Miraheze #Wiki #wikia #secondlife #opensim #serveremulation #serveremulator #liberachat