I have found that left-leaning techies (or at least the ones I've run into) seem much more interested in federated options such as Mastodon or the IndieWeb; distributing the costs of web app infrastructure into something local and negligible (ex: just running on a Raspberry Pi) and creating a whole network out of those, with moderation, administration, etc. done on a per-instance basis.
Granted, there's a few problems with the federation system (mainly that finding an instance whose admin you agree with can be daunting; Mastodon being a clone of Twitter and all its flaws; etc.) but I don't think they'd be solved by adding blockchain technology.
Granted, there's a few problems with the federation system (mainly that finding an instance whose admin you agree with can be daunting; Mastodon being a clone of Twitter and all its flaws; etc.) but I don't think they'd be solved by adding blockchain technology.