BB knew about it midday on Saturday and had people working on a no downtime fix which they got done later on same day. If people would have contacted support and waited for the reply on Monday what to do, can they use or sell the extra they would have less problems now. Support is for issue tracking. Even if they know about stuff they get metrics of most common problems or emergency situations. Less reports, less priority. Posting it to forums would have spread the damage.
Instead some people exploited like no tomorrow and some less, trade filled with storehouses being tried to be money laundered. Anyone who clicks to get the storehouse, logs out for 15 min to get game status in semi-passive mode and then relogins and repeats over 4 times in 12h and thinks there is nothing wrong or weird happening is stupid or ignorant that they should be banned just for that.
Players have some responsibility too even if BB sucks at bug testing. However BB should get their news posting up to date and communicate better. It took almost a week to get info about this to players even tho they knew about the problem same day it happened. Where was the front page post/warning about calendar problem during weekend?