Personally, I think it is quite the opposite. Positive postings between supporters is needed in large quantities. The negative postings won't stop with a decline in pro posting, it will merely decrease.

Over yonder is the main hub... newcomers will only see less support.

The problem is pro supporters get irritated and focus their postings on the lying haters in their posts and thus get deleted. This needs to be avoided..

Ignore them and post to supporters. It is okay to focus on the subject of a haters post but not on the haters themselves. Not always easy I know.

A brief stint when I was awake this morning of posts between supporters that remain without deletion is a perfect example of how to behave.

Just a my 2 cents and worth considering.