you are assuming that people only use these services for vapid interactions. plenty of people that live in censored countries use twitter to find out what is going on around them
I live in the US and I use Twitter to find out what is going on around me. For example, when I lose electrical power, my utility company posts updates on Twitter. My local TV stations and newspapers also post breaking news there.
The only reason those services use Twitter is because that's where all the people are. I'm not saying this isn't a beneficial use case, but Twitter isn't necessary for these kinds of services. I would even go so far as to say that corporate entities using Twitter to provide their users a service (outage reports) they should pay for the privilege or be forced to set up their own notification networks.