In my opinion, you shouldn't "notify" anything to the developer while in game unless it's actually important such as "the button doesn't work" or "This gun has infinite ammo". Spamming them with balance queries such as "This class is too weak" or "You should give this zombie a third testicle" are purely annoying since the developer will most likely forget or throw it out the window.
Keep your changes that you think are best to the respective topics and give valid reasoning as to why this should be like this and what issues it would cause otherwise.
Again, this is just my two cents and I felt sorry for Duby when we were testing. It's these quick suggestions with minimal thought that will ruin the mod.
The main culprit knows exactly who he is.
I have no authority in what goes on and frankly don't want to get involved with this project apart from help Duby with what he wants and make sure people don't abuse his kindness.