Dilution- Making statements or comments with no factual basis by talking out of your a**. Diluting the facts with make believe scenarios to put the company down. Saying the same pointless comments over and over (with no facts to back them) that the CEO has already put to rest and proved wrong.
...your right there is dilution here, but not from the company stand point.
"Negative Dilution" is also when people are allowed to sell your fully reporting securities short without the shares to back them up in case they have bet WRONG!