I never understood why some people have such a hate for mods in MMOs. I played WoW and was in a competitive raiding guild and participated in semi-serious PvP, and I always loved how different mods could help me out. Why don't people like them? Do they think it's difficult to install? If a guild tells gives you a list of mods you must have in order to roll with them, its usually for a good reason. But if you don't like their mods, you don't have to be in their guild.
Mods aren't required to be competitive. You can do everything a mod helps people do on your own. Mods just lower the skill or attention required to do things.