Prediction: people will quit Twitter and realize that it was a net negative in their life and not bother replacing it and be better off.
It's a place where you go see what celebrities (of any field, programming counts) are promoting and maybe follow a few interesting people who use Twitter as a medium for their writing for some reason.
It's not a place where you can change anyone's opinion and if you think that you'll have a bad time.
This desire to shape public discourse, and the decisions of the powerful, are the real stakes that drive twitter gladiators. You're right though, it's not discourse - it's "zealous advocacy" as interpreted by a peurile and distracted public.
Twitter is not all bad. This advice I concur is one of the useful utilities of Twitter.