Interesting. They still kept the size at the luggage size, and we've been at that limit for years now. But the space restriction is new.
The language is very confusing, because they've always called a piece of luggage that can hold like, 6 trading bags... a "single trading bag". So it's hard to ascertain whether or not they mean literally one little bag or not. It's like..."you can have this little space, but your bag can be as big as a piece of rolling luggage". Whaaa?
If they try and enforce a literal single bag, they're going to have a lot of pissed off traders. Also, was this in the rules before we signed up? Or was this a last minute update? Because that's a crappy thing to pull on people after they've paid for the event and purchased plane tickets and hotel rooms, if it was added last minute.
Personally, this would be a disaster for me. I attend the event to trade with people who have a lot of pins to pick from...many of them flying in from areas I can't get to often. If they enforce smaller amounts, then the pins I want from them might be left at home. There wouldn't really be a reason for me to attend the event if I can't trade enough to make it worth it.
Final thought-if I was going to dabble in conspiracy theories, I would speculate that this would be a good way to sow discord and weaken the event so they can discontinue it in a year or two. They would either tank the attendance from the mass exodus of people that would feel that a single bag wouldn't be enough to trade with, or shut it down and use all the complaints they would receive as a reason.
No idea if that thought has any merit...just thought it would be a very sneaky move, if true.