But how hard is it to do a simple announcement...some people were freaking out during the maintenance, nothing was announced on twitter, on reddit, here or on their website...

Hello,

Brief update on upcoming developments at Kraken:

https://np.reddit.com/r/Kraken/comments/7hutra/weekly_rkraken_discussion_december_05_2017/dqu062l/

Thanks for bringing your business to Kraken!