Asakiyume mita

Yes--you've said it perfectly.

In the fantasy I spin that *doesn't* involve the hacking of my accounts, a group of committed people are brought together (that very useful passive voice again), with relevant skills, and they guide the setting up of a way to run Twitter as a nonprofit, like Wikipedia.

Something as big as Twitter would still need a-lot-a-lot of funds to pay for all the moderation, hardware, and energy required to run it. But there are many examples of huge nonprofits. I suspect all huge organizations in our world have problems (I think that goes along with the hugeness), but I'm sure there are some that are more or less ethical and more or less fiscally responsible--so that committed group would model their set-up on that.