If someone makes a deadly boss mods type addon for ARR would you use it?

[Wolfie]

I want a game that is challenging, but one that doesnt require the use of addons.
Granted, maybe it'll help casuals?
Doing The raven nevermore now, and Im the last to die, being a WHM... And not because i spam heal myself

If you want a game that is 'difficult' by default, but addons make it easier for 'casuals', how do you stop everyone else from trivializing the content by getting addons?