Derivative works I understand. That would include transforming the content for some/all viewers. Making it mobile-friendly or otherwise reformatting for display, for instance, or adding affordances for accessibility, or for long content adding a generated summary.
Irrevocable and right-to-sublicense are the red flags for me. Nothing a company sells to us is irrevocable, but everything they take from us is expected to be.
Derivative works I understand. That would include transforming the content for some/all viewers. Making it mobile-friendly or otherwise reformatting for display, for instance, or adding affordances for accessibility, or for long content adding a generated summary.
Irrevocable and right-to-sublicense are the red flags for me. Nothing a company sells to us is irrevocable, but everything they take from us is expected to be.
Derivative could just be "let CF append your Google Analytics tag and that funny cursor-follower script.
Perpetual is way harder to justify though.