Earlier quoted context omitted.
As was recently demonstrated, online mob harassment is very doable on Mastodon: http://wilwheaton.net/2018/08/the-world-is-a-terrible-place-...
Beyond the fact that I don't really believe Wil is entirely innocent in his complaints, he simply had to change instances. He also used his real name. In fact, he didn't really take any steps to protect himself besides moving to mastadon. Large instances, after all, simply function like an unmonetized twitter.
I kind of think that's the point for a celebrity on Twitter or a similar site.