I also got this e-mail from them:

Thank you for your report.

The form from which your report was received indicates that you are
reporting a potentially prohibited or restricted item. If your email
was not to report a questionable listing please go back and select a
subject that is more appropriate to your concern.

We will thoroughly investigate the item number(s) you have reported.
Please keep in mind that the actions taken on a specific listing are
confidential and between eBay and the seller. We will not be able to
keep you abreast of any developments for privacy reasons, but we assure
you that we will thoroughly examine this information.

So anyway I have no idea what they are going to do.