The old announcement "It's Time To Gear Up And Celebrate" is the only one stickied, which makes it also appear first in the RSS feed, and RSS apps which don't sort them by date automatically always display the stickied one first, making it look like nothing happened since that announcement at first glance.

// edit: moved to graveyard, because i also had it posted in the general forum (because i became insecure whether this was the correct forum) and it has been fixed with a comment from admin Clotho over there https://forums.spiralknights.com/en/node/125281