I personally feel that now there are many fewer non-gambling projects, and the number of gambling projects is dominating the service section these days, and there are many users who don't like and want to promote gambling projects due to their own preferences, and when there were more non-gambling projects, users used to contribute more actively on bitcointalk. This is just my point of view, and that can be wrong. How many of you guys agree and disagree with me? Maybe this can be the reason users are losing their interest on Bitcointalk. Is that possible? CMIIW!
Contributions have nothing to do with campaigns. Those who left the forum, there would be solid reasons; someone shared and someone did not share with the community. A few users passed away; sorry for them, and we miss their contributions to the forum. And a few people turned out with shady activities as well and eventually left the forum. I don't think any valuable users left the forum just for the gambling signature campaign. Because even if you search right now, there are a couple of users contributing to the forum who don't care about joining any campaigns. I don't want to tell any names; you can find them easily.
I don't like to create any controversy; those who left the forum, they have their own reasons. Unless they turned as a scammers or involved with shady activities, then I respect their thoughts behind the reason for leaving the forum. Valuable users are those who are active and don't like to join gambling signature campaigns; they might make fewer posts, but they still would contribute to the forum. Otherwise they won't be valuable right now; they were valuable once upon a time. I mean, just for the campaign reasons, any valuable members won't leave; they must have some other reason in their life.