During the time you were active on the forum, you used to get paid if you used a certain project or a certain company's signature on your profile and posted according to the campaign rules. That is, now if a manager brings a campaign and if you are selected in that signature campaign and after being selected, if you post in different sections according to the rules using the signature code and avatar of that particular project, then of course you will get paid. But the rule that has changed in the forum signature campaign is that now no manager or any member can promote any mixer campaign.
So yes, the number of active campaigns has reduced, but there are many interesting campaigns still running ranging from gambling sites to exchanges.
Why don't we talk about altcoins? a few years ago signature campaigns on altcoins were usual and didn't pay bad (in the cases the alt was eventually listed somewhere) but I'm not sure if they are still a thing these days. For those who are waiting the opening of a campaign with payments in BTC, it might still be an acceptable provisional option.