Picture posting is enabled for all :)
Maybe some folks don't like the fact that this place has changed and they're not the centre of attention any more?
Wardy, I think the shed is the correct place to have the chitchat, but by definition of the shed, it can also include some serious threads, which are some of the ones being marred. I gather this is the problem, or one of them.
Why not tell them and remind others how they are expected to behave?