If you noticed recently those who were active in the forum when they were in any of the paused campaigns are no longer posting again, because there are no more in campaign and once there is a new campaign open, you will notice that they will come back again.
This happens even on Bitcointalk. After the mixer was banned, Jambler was also turned off, now Bestchange, some of the most generous campaigns are no longer on the forum. You can certainly feel that lack. Add to that that over time, certain old users leave the forum for other reasons, and a decrease in activity is expected.
Yah you are right I noticed that too. And recently a lot of campaigns have left the forum over there making many members stranded and many of them are not posting again. While some have left the forum and if this continues then most of the good members will leave the forum and once they left then the forum will turn to spammers and scammers zone and the falling of the forum might come from there unless the admin do something fast. +Karma for you. You speak well.
People are using the forum for money, plain and simple. Doesn't matter which forum, they are only active and posting if they're paid for it. Go look at spreadsheets and look at the number of posts required and the number of posts done weekly. Most times, if they got a 25 per week qouta they do exactly 25.
I'm not against earning money, but what some users need to realize is they have to be active all the time if they want a manager to accept them into a campaign. You cannot be told that so n so just launched a campaign and suddenly you make 10 posts really quick and hope to get a spot. Managers will check how active you have been and pick someone else.