Claudie said:
I agree completely, people like him should be banned (IP Address) from selling on ebay.
Here's why ebay does not ban a user by IP.
DHCP IP address dynamically assigned to a customer which are kept alive 48 hours after a power outage or if the customer powers down his modem, anything longer will result in a new DHCP address being assigned to the users modem coming back online.
A few ways a user can force a new IP to be assigned from the ISP, temporarily remove the router ( mac address from router is automatically removed from server list thinking there is a power outage, DHCP IP now in keep alive mode waiting for customers power to come back ) now plug the computer Ethernet directly into the modem port, server now picks up new MAC address from the Ethernet card and assigns new IP address.
Need a new IP simply remove your Ethernet card and replace it with another, each card has a unique MAC address, the ISP's server will recognise the new address and assign any available IP thinking this is a new customer coming online.
To effectively remove a nuisance user by IP you would have to ban the whole block of IP address's his/her ISP owns, otherwise the DHCP number bothering your site will eventually be reassigned to a new user who is now unable to access your site - and does not understand why when you as the site owner refuse to communicate with someone coming from a banned IP - confused yet.
You will find that banning an IP address is futile in keeping the nuisance at bay, said spammer is using proxy servers, keeping his real IP safe from being detected.
Proxy servers issue IP numbers round robin, to refresh a proxy issued IP number simply close your web browser, come back to the proxy server you'll be issued a new IP number for the duration of your visit.
Now you know why ebay does not waste time banning IP numbers.
Regards
Gill