Not quite right. By linking your bank account to PayPal, you are authorizing them to not only deposit monies in, but withdraw monies out...as in the case of a dispute. Can wreak real havoc on one's checking account, if one lives from payday to payday...as most of the real world does.
This is precisely why I took advantage of when my bank began offering really free checking accounts. On the suggestion of my bank, I opened up what is basically a 'dummy' account...no checks, no debit cards attached...that is PayPal dedicated. The minute the funds hit my PayPal account, I immediately do a transfer to my 'dummy' account. As soon as those funds clear into my 'dummy' account, I transfer them to my 'real-world' bank account...which is not registered, or attached to PayPal in any way. Online Banking can be a wonderful thing!
This way, should a dispute arise, especially a bogus one, there are no funds in the 'dummy' account for PayPal to withdraw. Should a bogus dispute arise, I will deal with the collection agency over PayPal. By Federal Fair Credit & Reporting Laws, you have a right to dispute, in writing, any collection action. With the appropriate receipts showing shipping, delivery confirmation, bill of sale, and any pre-shipping pics...the collection agency should discontinue it's action, or at the very least, take the matter to court...as any sitting judge will award judgement to the party with the paper trail...as in court, a USPS or other carrier's proof of delivery IS definitive proof the item(s) was received.
Lisa