Well, there are a few things that sellers will not answer to you, such as asking him/her the following questions after you win:
"Can you give me a discount?"
"Can I do local pickup" (even tho the auction says no local pickup)
"Can I pay you by check" (even tho there's only one specified payment)
etc.
If the seller has high rating and barely or no negatives, then normally it's okay to pay. With paypal, u can alwasy pay by credit card and if anything happens, dispute with credit card company cuz paypal won't do shxt.
If the seller's ratings are over 1000 and has tons of stuff to say, most likely seller is busy and expects payment within a certain number of days, most likely stated already in the auction.
If seller rating is 0 or less than 5, or tons of negative, then u'd better be careful.
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