I used to have my face as my pfp until the day that I saw another user here replying to someone I knew - a close friend's abuser whose psychological abuse caused them a series of mental breakdowns and hospitalisations.
I have them blocked and muted and yet I still see them occasionally being replied to by folks that I follow who are unaware of this person's background. I guess they might be able to see me too, so I took my profile pic down (and all selfies are behind a NSFW tag or CW) and removed some things about me from my profile description. Hopefully they don't remember me, even though I remember them and how they tortured my friend. #FediverseSafety