I don't know what "morally lazy" means as the author never defines the construct. Discord has an uncertain monetization model, sure. It's not great for privacy. It will, no doubt, follow Doctorow's "enshittification" model.

And then I'll just spin up a Mumble server or something. So what? Should I feel bad for using a service while I can? Should I feel bad for having fun conversations with my friends? Maybe not everything has to be a fraught struggle of good vs evil.

I wonder why author (is it OP?) chose to share an unfinished blog post? First time I'm seeing a draft being shared. It also confuses me that the title makes it seem like it's about the user but the article talks about venture capital funding, unsustainable computing, and financial feasibility? Most casual users doesn't care about stuff like that, that stuff is the company's problem, so why the accusatory title?