I agree with you in a way that the forum discussion would be better but it would remove all the traffic from the forum. Just look at the replies of this thread and most of them have a signature campaign and of course that all of them are against this. My advice is, just use this forum occasionally, try to go around through different forums and sites and not just focus on one, it's good to go through different opinions and different types of communities. This is something I've noticed for a long time but never bothered to post, that's why I never used this forum that much, but my concern with signature campaigns is not just the posts from newbies or trolls, but mostly because of the forced discussion it creates, where you realize that the same type of topics get repeated to death, and most of the replies are repeated and don't add much from one another, but everyone posts because everyone wants to fill their quota to meet the requirements to get paid from their sponsors.
It created a kind of robotic conversation, it almost seems like most of the replies and bot made or copied from a repository with different deviations. But this is a general problem with cryptocurrency, most of the forums or communities are similar, with different ways of forcing discussion and getting popularity (like reddit with karma, etc) that there isn't a better place to go.