What's interesting though is that it's now his private play-toy. If you want to buy a $1,000,000 Ferrari and thrash it into oblivion in 1 week that is totally your choice, have fun with that. It wouldn't be a free country if people could stop you doing so.
He's doing the same thing here, he just has more money to play with, which I think it what people are ultimately annoyed about.
Also worth pointing out that for years and years everyone said the way he was going about aerospace was impossible and stupid and was never going to work. They said the same thing about his approach to automobiles.
By very definition to shake up an industry you need to go against the status quo. You need to do something others have not, and you need to take risks. Otherwise you're just going to get a 1 or 2% improvement. So actually I see him messing with Twitter so fundamentally as a good thing, because there's a chance it will result in something great. It might burn to the ground too, but that's the risk you take when you actually do something.
I mean, the worst thing about Facebook/YouTube is the relentless advertising, so maybe there's a chance that Elon chasing away advertisers is actually a good thing for Twitter users? He owns the thing, what do you care if it makes very little money?
I guarantee YouTube and Facebook would be more enjoyable to use with 1/10th the number of ads (and as a result, 1/10th the profit, which means nothing to me)