Not sure if serious or not, but yeah I use interactive rebases every day, many times a day (it's nice for keeping a clean, logical history of atomic changes).
It's very simple to recover if you accidentally do something you don't intend (git rebase --abort
if the rebase is still active, git reflog
to find the commit before the rebase if it's finished).
Blocking hexbear is a sensible choice, good for them.