[emilfihlman]

Probably controversial views on the internet, ie. nothing actually bad.

[AgentME]

I'm going to make a wild guess that it was more than that, given that they were the type of person to harass the conference organizer after the fact.

[lawnchair_larry]

To be fair, most of the harassment allegations were vague and not even alleged to be perpetrated by the woman who was disinvited (like “a famous hacker knows her, and my Signal started doing weird things”).