Considering my name's just me working with what is essentially a misspelling of my actual name, I would probably be a little bit confused. Eh.. I tend to make up nicknames for people every now and again anyways. I find using long names way too formal.
The line of names, if you're wondering. Patrick -> Pat -> Patty -> Oaty -> LordOaty: Prince of Breakfast Cereals
There isn't really a good story for how I came about such a name, one of my mates just said it once in chat and I was like "eh, that works".
Actually, my friends call me Craigy all the time, and even 'the impossible deer' sometimes XD so if I would be called Craigy, I'd react normally, even if it's a stalker. Id probably think it's some person from school who heard somebody call me Craigy, 'cause almost everyone I know calls me Craig or Craigy, even tho my real name is kaylynn.
I'd sob and ask HOW DO THEY KNOW ME LOL Omigosh if my irl friends ever called me lux I'd be surprised xD Mostly because they've never really heard of my online name PLUS my name is Alyssa so it's very different HAHA
I'd most likely be a little confused at first, and ask them where they know me from, since I use 'Jinglez' pretty much everywhere. But overall I would probably be pretty cool with it since that's what all my online friends know me as.
I've never told anyone irl my user name here and I don't share photos so if someone did that I'd stare at them like a deer inheadlights and just internally have a panic attack go on in my brainspace >3<