friendly reminder that if you’re at a conference or other professional event and you’ve privileged enough to never have felt threatened by an abuser, then it’s your duty as an ally to report it to the organisers if you see a known abuser in attendance
I’d even argue that if you do feel threatened by them, leaving for the day/a few hours and contacting conf security and/or the code of conduct team is a good option to keep in the ol’ arsenal