It hasn't affected my sales numbers (so far).

Re the hacking...

A website post has offered "eBay user details for sale", following the revelation of a cyber attack aimed at the online marketplace. 

Although a spokeswoman for eBay has told Fairfax Media that the offer to sell eBay user details was not a legitimate one, a leading Perth academic says it is – at the very least – a reminder of the need for vigilance.

http://www.smh.com.au/digital-life/consumer-security/password-security-highlighted-as-ebay-user-deta...