I reached 2000 activity posts today and I didn't have to wait because I immediately moved to 2001 with the next post. Maybe I'm just lucky or I've met some other conditions so I don't have to wait. I know that there were several members who asked questions about it, and as far as I noticed, some were frozen at 2000 activities for days.
It's not about luck. It means that all the necessary factors have been achieved for your activity to continue to count. Karma (until a new system update) is not yet decisive, but the posts are important and something that many people still do not know, although I repeat it whenever I can. The amount of time online on the forum. That has been the determining factor so that you did not have to wait.
I also wasn't sure what the exact factors were, given that the admin was also a little secretive about it, which makes sense because if the members knew what exactly they needed, then they would definitely go to ensure exactly those factors in order to ensure that their activity is not frozen at some point.
Maybe even after these posts, some things will be clearer for those who will find themselves in such a situation in the future and will think that the forum is somehow
broken.