I think this is a very important point. I'll admit I'm an impatient buyer, and I don't have a wonderful memory. If I have any doubts about a seller, I may send a query if I really, really want the item. But if I don't get a reply I'll probably forget all about it.
The reason I think support should be taking an interest in this: In October (our best month so far on eBid) all except one of our buyers was a new eBid member. I checked their feedback, and several of them returned to buy from other sellers. If their first attempt to buy here had failed, I'm sure we would never have heard from them again.
eBid is working hard to keep the sellers happy, but it's equally important to protect the buyers . . . and especially new members who aren't aware of this problem.