How not to protect your customers email addresses
The Dutch division of eBay really tries to protect its bidders email address. Check this out; first; the terms of use tell you that email addresses are protected using forwarders (for example, ‘name.pq7ft5v3uptfbm1ib5osoqa04ic1@zend.nu’) to prevent spam. Then, if you (as a seller) want to email a bidder, you get a very long (’protective’ I guess) URL (368 characters in my case) which, indeed, doesn’t show the bidders email-address; but only the forwarding address. Now, check out this screenshot of the very first screen you see as a seller, selling your article (click to enlarge):
Isn’t this a great example of a tiny hole, which would be easy to fix, but which currently completely destroys all the other work you have done on your so-called security?