I don't want to correlate this forum's comedown with the mixer ban, even though I've thought of it and it's likely one major factor, but what's the current picture of Bitcointalk according to you? To me, it's declining in genuine interest.
I can agree as well on this for some reasons like the mixers ban and scarcity of signature campaigns in filling up the space created from the banned mixers on the forum, many were already leaving while some are no more active as before, fine and good if the signature opportunity is banned along the mixers for instance, people will still be active on the forum but the number of increase we should have achieved may not come to pass because there will definitely be a drop, all these are part of what increases the activeness and activities of so many members on the forum, though it has nothing to do with the sole purpose of bitcoin discussion which is why the forum was created, but a means to increase the forum participation and activeness of members from the opportunities they were served with.