So I mainly play alliance on Stormrage (99% Alliance server).
I decided I wanted to roll a few Horde toons. I prefer to have all my toons on one server, because I love looking at the login screen lol.
Is it non-beneficial to roll Horde toons on a 99% Alliance server? What will be the downside to this? I'm mainly doing it for Mogging because I love some of the Horde races.
Unless you're planning on mythic raiding on the horde character or trying to become a PvP god there is literally no disadvantage or advantage to rolling a character of any faction on any server.
There is almost no content tied to servers anymore.