Surely that scenario is the exception and not the rule.
But also, if you have the Facebook app on your phone, or associated with your phone number or email, you’re not anonymous. It’s been an issue for sex workers in the past who try to conceal their identity on social media but Facebook still manages to suggest their “Johns” as friends.
This isn’t true. I have Facebook on my phone and there’s no way to identify me by my phone number. It’s unlisted on my profile and not public. Searching for me by number or email does not work. I’ve check my Fb privacy settings quite often and try to find workarounds.
People are seeking anonymity from their peers and their employers, not neccesarily from facebook itself. I haven't heard of facebook Doxxing people with any sort of regularity.
But also, if you have the Facebook app on your phone, or associated with your phone number or email, you’re not anonymous. It’s been an issue for sex workers in the past who try to conceal their identity on social media but Facebook still manages to suggest their “Johns” as friends.