[batbomb]

For my fiancée, she deleted her facebook a long time ago, and she never paid attention to the username. We just made a best attempt at guessing the “user name”

[dehrmann]

Facebook didn't always have vanity names (and I'm not sure if you get them by default), so there's always an out.

I do feel a little for my relatives because I've claimed my last name on a decent number of platforms.