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.
It's more of a general Forum issue and habit among some of the altcoin discussion board posters. I myself dislike reading walls of text, not because they are spam, but because I am lazy and do not have enough time to read long notes on the Internet. With that said....
Before I joined Stake, long postings were = quality; not anymore, we can't always regulate how they write, but we can always manage how much their posts are worth and how many X number of posts each participant earns/week.
You're only seeing the signature everywhere simply because we run the biggest campaign on the forum.. BTW this discussion isn't about stake. Let's focus on the topic.