anna,
   I'm sorry that all of this snowballed on you 
at once. when it's just one, it's dealable, but 7 
really takes a lot of money and trouble. I don't 
think anyone can tell you what is right or wrong, 
you have to decide for yourself. just don't treat 
all cases as the same, because that puts the 
people with legit reasons in the same pen as the 
people who love to bid and *never* pay. I hate it 
when a seller leaves negatives for any and all 
offenses. as a seller myself, the only cases I 
will leave negative feedback is if either the 
bidder shamelessly takes 3 months to pay me $30 
or if they are disrespectful or selectively 
ignore my emails and try to skirt the issue 
rather than tell me flat-out that they never 
intended to pay. that's just me, but you have 
your own policy and you should do what you feel 
is justified.

/mina