Owners of these webpages please step forward & have a fair & open discussion with the bitcoin community about what problems your sites are having (If any) What your doing to rectify the problems & how people go about contacting you when something goes wrong??
The problems these sites have are twofold:
1) double buys. it is obvious that once an item resets, people (and bots) will spam the servers with refreshes until it is buyable again. while the server is already under load from this, when it finally happens the chances that more than one person receives a sending address is not too small. However, only one person actually receives the item, usually the fastest. These have to be manually refunded.
2) blockchain API fallout. these are annoying since they can create the weirdest bugs. Most of the time, when a special payment address is created for the person that buys the item, the coins can get stuck in some kind of limbo between that freshly created address and the actual wallet address. they often stay there for more than 24 hours. Over the last few days it happened rather often and I had lots and lots of manual refunds to do. I hope that this is just a temporal phase and the blockchain API will become more reliable...
What I'm doing against it is double checking all transactions at least once a day. If it's a free day I will check more often and find emails instantly, if not, I might receive the email but be in a position where I can only refund once back at the computer again.
Until now, every e-mail I received has been met with a response, no macros or copypasta. Most refunds happen without any contact since only a fraction of the people experiencing problems write an email before I find it. Additionally, refunds usually contain a public description in the transaction.
