Well, December 23rd is just a random day and alot of people will be able to play, but the 26th is the second day of christmas and it wouldn't be logical to put the reset then (when people actually go see their familys...). There will always be days when people won't be able to play, that's not a reason to change the reset date that has already been decided.
is upgrading spawners with EXP levels like last time or is it with actual EXP like 3k or 4k
last one would be easier to do since if you had 500k xp, and its like 200 levels
its just gonna get drained unless u exp bottle
which is very annoying
its just a waste of time, you could spend the whole map building a regen wall then with 3 shots we can get in xd its just useless
and unless you are gonna have 50 people working on it at once, it's a waste of time effort and money