I joined the Cryptotalk campaign yesterday (because it's too good for me not to take advantage of! - and like Heisenberg_Hunter said, the fact it is not gambling-related removes any moral qualms), and I will say that I have noted so far there is a ton of crap posts from people. Low quality stuff that shows that they pretty much just skimmed the OP of the thread, which converts into posts that normally read something like "Wow, great opportunity, Bitcoin will really benefit from this".
It's a big shame because it makes reading a reasonable proportion of threads on this forum a complete pain. I go on Bitcointalk to find interesting discussions, I'll only ever post on something that genuinely interests me, every once in a while I'll make a thread on projects that I'm working on (e.g. CryptoSamaritan in the past), etc. Signature campaigns are a nice bonus and my view is, if it's there I might as well take advantage of it, but my view is it's supposed to be a complement to what you already do on the forum. But when you're offering as much as the campaigns do right now, you get swamped by posters from countries where that money goes a lot further, and it becomes a job for them.
It's a shame. From what I've seen yahoo does a very good job of managing it, it's not his fault that the posters can be pretty rubbish sometimes - more just to do with the rules of the campaign.
I know you are a participant with high integrity, you don't need to say it.
Almost all of the threads that I saw were posters from cryptotalk. But not all of them are junk posters, many of them also continue to maintain the quality of posts like you. Humans are unique and diverse, so understand their shortcomings and improve the quality of self. Money is more valuable to those who need it, but not the same as those who have no priority here. Many cryptotalk posters are former prize hunters for ICO, IEO, STO and others. I'm sure the Campaign Manager can work well, not many people doubt it. So I think, take this opportunity and maintain the quality of posts and don't make 20 posts per day even if you can.