James,

One way of killing all bad feeling or rumours is to become part of the FRA.
The FRA has been set up to stop small and large events from occurring which are not considered safe, and to provide a means to help improve things.

By becoming part of it, and having your events reported on, enabling it to be classed as an FRA supported event will kill any criticism.
Event reports are carried out not to jump down organisers throats, but to go through it, and try and highlight how it could be improved for next time.

Just a suggestion if you are serious.

Jonno
FRA Events Chairperson