We've had the post cap measure in place for a long time to encourage only quality posters; the lower your rating, the fewer posts you're required to make per week. Our payout method solely favours high-quality posters. In the end, we will only do what we believe is best for the forum and our clients. We are always open to changes, however our current system is similar to what the OP suggests.
I want to give you the benefit of the doubt and if you have made changes I understand that it will be for the better, but I still don't perceive them. The thing is that I usually find long posts that seem generic to me, that don't contribute anything, and when I look at the signature it's always the same. For example, in a thread I created recently, this is the last post:
One of the things that I have come to realize about Spam is that, we do not have an analytical tool to rate posts to know which one is spam or not, that is why comments and posts are evaluated based on individual preferences, but a general spam post is a post that is generic and does not make any sense, just like the one shared in the ops, and from 2018 until this very moment with the merits system requirements for ranking up a lot is now demanded to put up with the forum standard which means a constant improvement to meet up with current technology such as AI and the rest of the writing bots, which the forum setting is not favorable for such tools since we are all humans here and making contributions based on human efforts and sharing real-time ideas and experience in our discussions around the forum, so a spammer can't keep up with such demands for long and that means limited space for spammers here in the forum with the current Bitcointalk system.
And if you look at the first comment in the thread it's in the same style. I think maybe if you've made changes it's because there are still reminiscences of the past system where people write long posts but don't usually say much. In fact, if you look at the first comment in the thread it's the same.
I know you have great quality posters but I don't know what it is that at least in my experience I keep coming across long posts that seem to me like verbiage that doesn't say anything. I don't know what the solution is, but at least be aware that the problem still exists at least in some cases of some of your signature campaign members.