Ah, I don't mind flat out asking someone directly. I've found that every one I've asked, so far, has remembered me. I'm sure I will come across someone who has no idea who I am and believes me to be a creeper, though. "Why does this PiroMunkie n00b keep on viewing my profile? What kind of name is that anyway?"
I had to do that when I came back. Heh, it really was fun lurking around asking people if they were who you thought they were. But I don't think I directly asked them... If I'm not mistaken, I asked the ones that I could identify to confirm the others' identity for me.
Haha, but that is fine because it still lists that name on your profile and that was the only one. Some people have had three just in the past year and it's just confusing. I'm having to send them messages asking if they are a certain person because I can't tell. XD
I don't mind, though. It passes the time while I wait for an admin to change my name.