I like the setup of this new board, and its rules, look promising (if they'll get enforced regularly)

Limitately within endchan this board may not manage to get enough active posters to self-sustain.
There needs to be more notices about this board from other sites, to give it more visibility.

Coming from 4chan, that place is the opposite of endchan in terms of activity.

4chan has a lot of activity, but also an huge amount of spam, and also malicious diversions from hidden groups.
Where many decent threads are buries within minutes, without getting a chance to develop. For the same reason, the replies themselves are most of the times only oneliners, basically twitter level shallow drivel, aiming for an emotional grab out of extreme outrages, because without outrage, nothing really manages to survive on that board.
It's a setup which doesn't lead to good debates, nor good discussion and insight. Lots of activity, but 99% of it is worthless.

endchan seems to be the extreme opposite, too little activity, almost abandoned.
There being very few people, it's normal for only few boards to manage to build up a decent number of active posters to keep things rolling. Every person has only a limited amount of time to spend online, one person can't follow too many interests, that's just a limitation of time which can't be changed.