I absolutely love this site, but I think these sorts of outages are going to get worse before they get better. eBay's recent fee changes have sellers scrambling for an alternative.
It's been suggested on this board that COMC might alleviate some of these problems by adding 15 cents per card to the submission cost and reducing the packing/shipping charge by the same 15 cents.
I think this is a good idea and should be examined by COMC. It would cause sellers to be more selective about the cards they submit, it would add value to the cards which are already on the site, and it would provide an incentive for people to buy and take delivery of more cards.