I want to be a Thalmor Justiciar and annoy players on their path. Can I do that ?

If you want a hammer to the head.

lol or I can jump around naked with my shining yellow elf skin

Yeah, haha. On the first day of the game, I wanna run around calling people noobs.

I would be fervently disappointed if the majority of altmer players didn't want the collective destruction of all human species. Down with the swine! Purge this land from their deranged filth so that we may ascend our way into our rightful place in Aetherius!

But that's just me.

Nope. The Thalmor hasn't been established during ESO's time.

Get your kicks another way Thalmor scum

Unless you want to make a guild which slaps the lore in the head, but then again, if i saw something that reassembled thalmor look wise i would go instant sparta mode on you.