[edualm]

There is actually! I was told about it over the phone with an App Review rep a few weeks ago. I didn't write it down unfortunately, but I think it was [e-mail] - googling for that e-mail address returns some results, so I am pretty positive that was it.

[nowherebeen]

I just sent them an email. Other developers should too because everyone should play by the same rules.

[hundchenkatze]

Awesome! It seems that most of the references in search results are around interactions between Apple and developers. But it definitely looks like the best place to send violations as well. Thank you!