I honestly have no political axe to grind here, but I distinctly remember how 4 years ago it was a legitimate talking point on the losing side that 'faithless electors' (or 'Hamilton electors') should step up to deny Trump the presidency ([1], [2]). Michael Moore offered to pay the resulting fines for any Republican faithless electors [3].
To me as an outside observer those seemed like attempts to overturn a fair democratic election and install an illegitimate government. However, neither the politics subreddit nor Michael Moore have been deplatformed. So I'm not sure the criterion you mentioned is entirely correct.
[1] https://old.reddit.com/r/politics/comments/5gpmru/first_repu...
[2] https://www.theatlantic.com/politics/archive/2016/11/meet-th...
[3] https://abcnews.go.com/Politics/michael-moore-appeals-gop-el...