The problems with your suggestions:
Originally Posted by Lur
1) I suspect the vast majority of the player base is extremely happy with the double experience points. You are part of a small minority that can be heard over the roar of all the people yelling "Good Job Turbine"
2) Turbine is not going to give up the revenue from lost sales of the experience disabler.
My personal opinion - Experience point accelerators are a very popular and inexpensive way to please the majority of the customer base and such Turbine will provide this functionality to us. Since there is a experience point disabler in the Lotro store, that is going to be your only option besides not playing the game.
Swtor has done game wide experience point bonus. IIRC - Bioware did a 30 day bonus as part of the run up to the launch of their expansion this year. The bonus was extremely popular. I ended up not playing much because there is no experience disabler in Swtor.
Unless stated otherwise, all content in this post is My Personal Opinion.