I leave accurate feedback in just about all cases. I honestly
don't care if someone leaves me a retaliatory neg, though of course I try very hard to prevent situations like that from occurring if possible. Why don't I care? Because I believe that all but the most inexperienced eBayers would see right through a retaliatory neg, and take the time to actually check out the transaction for themselves.
I have one piece of advice for people who don't want a neg from a SELLER: use a buying ID--if you're exclusively a buyer on that ID, no one *cares* if you have a neg from a stupid careless seller like that. If you don't sell on the ID with a negative, then why does it matter whether or not you have 100% FB?? I sure don't look at that as a seller, and neither would the vast majority of sellers. It's not like they are going to cancel your bid or refuse to sell to you because of a negative from a po'd seller who sent you stuff that was sure to be broken.
As a buyer, I also don't care when I see a
small percentage of negatives on a seller's record--anything around 99% for a seller (assuming they have hundreds of positives) makes me feel okay buying from them. If a seller has like 10 FB though, and one of them is a neg, even if that is just pure bad luck on their part, I'd avoid, because it's all about the percentages to me. That means 10% of their transactions were bad, as opposed to 1% of hundreds or thousands from a more established seller.
So, I said all this to say: please, folks, leave accurate feedback for the benefit of the whole
eBay community! I know it sounds communistic, LOL, but it really does help everyone else out.