The the world wide web, ipv4, IRC, the US constitution, the telephone system, email, were all developed in older times, and as times change, they develop flaws which need (ugly) patches. That's a sign that they're successful, that no one company has come and replaced it and then killed it when things got inconvenient.
Think about the opposite situations: Google Groups replaced Usenet, and now it's completely dead; Google Reader took a lot of marketshare from RSS and almost killed it when they shut it down.
So let's not hastily destroy the only online communication system we have left, that's not controlled by a mega tech company.