This year I lack spare time to develop games and even check the forums. I limited my activity to resubmitting games to the Arcade when it got online again. So there are probably many things you have said I have lost.
In the old Arcade, you couldn't upload games using plugins. I wonder if the new Arcade allows submission of games with plugins, since there are many games that use plugins in the underground jam.
I'm interested in this because my best-ever game (the jigsaw puzzle I made a tutorial for) uses plugins -- so I could upload it to the arcade and it would made a great companion for the tutorial).