Or just implicitly agree, which (for better or worse) is the normal way for open licensing.

Also, if you click through to the link posted up thread and go to "files" to try and download them, it explicitly says

  You need to agree to share your contact informations to access this model

That may be boilerplate but it certainly implies they're taking your information, not just asking you to agree to a license.

But only to sue you when you are doing nasty things, that are against the license and they get wind about it. Regardless of that it doesn't work to backward-identify you, it was necessary to the legal aspect of their side of the license to have restricted access. Else this licence simply wouldn't work.

> Else this licence simply wouldn't work.

Well OK but then I don't like their license either, if they have make me do things I don't like as a requirement to make their license work.