I don't think I shared mine either - of course, my PSN handle is in my sig (ArgyleMonkey). I have a Wii U on the way & it's the same (I had one before & grabbed the name then).
One caveat tho - I only like to add people that I "know". In other words, if you've posted enough here to where I recognize you, I don't mind adding you. If you're a lurker, I probably won't. It just bugs me to have people on my list that I look at & go "who the heck is that???".
So if you send me an invite & your handle on here is different, mention what it is in the invite.