Never got the reason why people go to parks to buy the limited merch only to sell. I do get those buying for themselves and buy another to offset their costs -- it's America, right? Don't like it - don't buy it.
If Disney wants to limit things, that's up to Disney. eg, they will actively seek to buy/remove listings and ban resellers of event tickets -- look at OBB
I do worry that the freedom and relatively easy rules to follow is part of the attraction of
DVC ownership. We own no other timeshares nor have any interest in to.
If DVC starts making some crazy rules like # of changes, days to wait, days to move, restrict a week here and release days/weeks there. or rooms available after x days -- that's just hurdles and rules that will discourage owners who really don't do this all day 24/7 even more.
KIS. If Disney is going to regulate this, do it at the 30,000ft level. I don't need Disney to become like our HOA board