Scammers?

A while ago I made a giveaway for Civilization 5, and the winner was edited. However, today edited claims to never have gotten my gift, and upon looking at the history of the transaction, a few red lights starts to appear:

I got an invite from someone named edited before I'd added them myself, supposedly. I don't recall if I actually tried re-adding them on my own though.
They asked for the game via the trade menu instead of the gift menu.
And then I never got a proper signoff here on steamgifts. Not until I contacted edited today, via direct communication instead of relying on Steam's info.

edited claims to have only just accepted my friend request this morning, and looking over their games list indicates they don't own Civ 5.

if edited is correct, then what I guess happened was that someone picked up the name of my profile and edited's once the giveaway was over, contacted me with an altered name, and had me gift them something via trading to make sure it wasn't traced (because for some reason Steam doesn't track trades in a list like gifts).

I'll see about contacting Steam to resolve this, in the meantime, if this really was a scam, please watch your backs (and if possible, could someone see to it winners aren't announced immediately to outside sources to avoid scams like these?)

Edit: There, found the supposed scammer. The person goes under the Steam name given in the giveaway, it's true, but they change it frequently to other things.