Other than dps meters that empower a small number of d-bags to actively and sometimes vocally discriminate against other players, the bulk of the 'game modding, that actually occurs is visual mods that don't actually affect anyone besides that single user. Sure there's a bunch 3rd party meters you can install that will tell you very esosteric borderline idiotic things--like where the next aoe is going to fall, but for the most part its just junk that affects the individual user. What would be a better use of resources is trying to circumvent botting, both crafter/gatherer and spam/battle bots. The rest is eh.