Currently double exp is every 7 days.  I think it would be more fair if it was every 6 or 8 days, so that its on a different day each week.

Which, in my opinion, is too damn much. Weren't we trying to fix the level gap? Now we're just making it larger for the people who are able to be on during those days. Which are generally the ones who have a lot of time to level in the first place. Just my thoughts about that. (Yes I'm salty that now I am basically MIA and NOW there is crap ton of double exp being shoved down throats, but meh, level gap is real issue)

Why not have those double XP days for the new users? Give it to them for their first year?

Fitting since after 1 year you get the % before your name in chat.

I suggest having power hour every 23 hours! eventually it will cycle through every time zone & make everyone happy, not to mention it will be available sometime during the weekends for those that want to hang around & catch it (or days of for those that work weekends etc)