Earlier quoted context omitted.
They didn't learn much of anything, though. Twitter lost money when they played nice, and they lose less money when they play mean and lean. Either way Twitter was bloated and overvalued, but anything bought with wealth leveraged against Tesla shares can't be worth much in the first place.
No, they really did learn things. For example, consider the racist mobbing of Leslie Jones in 2016: https://www.theguardian.com/culture/2016/jul/18/leslie-jones... Twitter learned that they really had to take harm reduction more seriously if they didn't want to be known for things like that. I believe that their improvements there were part of what set them on the path to their later profits: https://www.netcials.com…
As an impartial non-Twitter user, I think it's safe to say that neither version of Twitter was healthy for it's platform or users.