@adamgreenfield This has been on my mind as well this month. Generally I do remember faces reasonably well, but it is context specific, so if I encounter someone I know unexpectedly in an unfamiliar setting, I may flail. And video calls are the worst! I am now starting to meet people in real life who I may be rather well acquainted with through video connections, and it turns out I have an excellent chance of completely failing to recognize them. So many cues are stripped out.
Yeah, I definitely think there are some degrees of this which aren't actual faceblindness. I'm not faceblind but I think I'm on the not very quick end of the variation. I remember someone greeting me in a friendly way and me being inwardly like, "that seems like you know me but I have no idea who you are", and when I asked "where do I know you from", it was choir! So we'd been in the same room numerous times, but for my brain that wasn't enough to learn them.
But yeah I think the proactive announcement is very sensible! I know someone who's faceblind and tells people, and I do keep it in mind if I'm re-meeting them, and remind them my name.