A healthy tree is not dying because you prune the dead wood.
To those of you who would like to see more healthy discussions, there is a simple solution - start quality discussion threads, and contribute to those that have already been started. I thought that my coffee lounge thread in the Ivory Tower might create some interesting opinions. In fact there have been some good replies, but it is pretty much ignored. Sometimes I start to think that members are only interested in pushing their signatures.