My Horrible experience with most (not all) WoW players in FFXIV so far

[Vyrerus]

Making assumptions based on jargon just isn't a very accurate way to determine where they came from.

Here's the thing though. Not once has someone who's used that jargon not been from WoW. ¯\_(ツ)_/¯ So it's not really an assumption.

[Shironeko_Narunyan]

Here's the thing though. Not once has someone who's used that jargon not been from WoW. ¯\_(ツ)_/¯ So it's not really an assumption.

Nah. We used words like "aggro" in older games, like DAoC. I don't think there was a word for it in UO, although the concept did exist.
What originated in WOW was "transmog" and "mob(ile unit)".
No idea where "toon" comes from -- I don't like the term. My characters are characters, not toons.

[Pells]

...and "mob(ile unit)

I came across mob long before WoW, playing on muds and mushes.

[Ronduwil]

Nah. We used words like "aggro" in older games, like DAoC. I don't think there was a word for it in UO, although the concept did exist.
What originated in WOW was "transmog" and "mob(ile unit)".
No idea where "toon" comes from -- I don't like the term. My characters are characters, not toons.

Transmog originated in WoW. Mob most definitely did not. I heard the term used all the time on MUDs and MUSHes in the 1990s, ten years before WoW was even released. I'm not 100% positive, but I believe that "toon" is a reference to the Toon tabletop RPG from 1984: https://en.wikipedia.org/wiki/Toon_(role-playing_game)
When you created new a character in that game, you were creating a new toon.