1) It's a private company, they can refuse service to anyone for any reason - this is spelled out in the TOS:
> If we believe you are abusing eBay and/or our Services in any way, we may, in our sole discretion and without limiting other remedies, limit, suspend, or terminate your user account(s) and access to our Services, delay or remove hosted content, remove any special status associated with your account(s), remove, not display, and/or demote listings, reduce or eliminate any discounts, and take technical and/or legal steps to prevent you from using our Services.
> Additionally, we reserve the right to refuse, modify, or terminate all or part of our Services to anyone for any reason at our discretion.
2) There is a mandatory arbitration clause in the TOS so you can't take them to court.
> You and eBay each agree that any and all disputes or claims that have arisen, or may arise, between you and eBay (or any related third parties) that relate in any way to or arise out of this or previous versions of the User Agreement, your use of or access to our Services, the actions of eBay or its agents, or any products or services sold, offered, or purchased through our Services shall be resolved exclusively through final and binding arbitration, rather than in court.
I don't like it but that's how it is. For some reason no one - right, left or center - seems interested in regulating these things.
1) It's a private company, they can refuse service to anyone for any reason - this is spelled out in the TOS:
> If we believe you are abusing eBay and/or our Services in any way, we may, in our sole discretion and without limiting other remedies, limit, suspend, or terminate your user account(s) and access to our Services, delay or remove hosted content, remove any special status associated with your account(s), remove, not display, and/or demote listings, reduce or eliminate any discounts, and take technical and/or legal steps to prevent you from using our Services.
> Additionally, we reserve the right to refuse, modify, or terminate all or part of our Services to anyone for any reason at our discretion.
2) There is a mandatory arbitration clause in the TOS so you can't take them to court.
> You and eBay each agree that any and all disputes or claims that have arisen, or may arise, between you and eBay (or any related third parties) that relate in any way to or arise out of this or previous versions of the User Agreement, your use of or access to our Services, the actions of eBay or its agents, or any products or services sold, offered, or purchased through our Services shall be resolved exclusively through final and binding arbitration, rather than in court.
I don't like it but that's how it is. For some reason no one - right, left or center - seems interested in regulating these things.