Quote Originally Posted by Danbo05 View Post
It was a joke. Sorta. Ish. Based on the fact that Thief's naming was changed to Rogue to fit in with the lore of FFXIV.
I think they changed Thief's name because Thief denotes that its main mechanic would be theft, i.e. stealing, which generally doesn't go over to well in MMORPGs. Where as Rogue denotes more of a pragmatic feel to it and is a bit more vague-sounding.