"Whilst we all have our minor differences on a definition, we actually have a lot in common.
There is sufficient expertise on Mudcat and some of the other ballad/trad song forums to formulate our own WORKING definition of 'traditional song'. Instead of bickering over minor differences let's explore what we can agree on. Obviously some of the more wacky ideas will differ but finding agreement could be very useful and helpful.
So what I'm proposing is a MUDCAT definition to help those genuinely confused by the whole affair."

Yes please!
Focusing on broad commonly recognised and supportable ground, and resigning the minor academic points to appendixes, would be a very helpful idea for assisting anyone new to this territory.