Obviously I like my sobriquet, "Bleys Jackson Maynard" or I wouldn't have chosen it.
I used to dislike my real name (Marcus Scott Huculak) because a) when I was growing up I went by "Mark" and people would bark it like a swear word, and b) Nobody ever spells my last name right, and occasionally slip an "x" in there for no reason, but I'm a bit more indifferent now that I've started going by Marcus and learned the correct, Ukrainian pronunciation of my last name.
As of this point, I usually introduce myself as Bleys online and Marcus face-to-face, but I'll respond to either readily enough online. If someone I didn't meet online were to call me Bleys face-to-face I'd probably have them committed to an institution for the criminally insane. Especially if they pronounce it wrong (It rhymes with face, not phase)