Effectiveness

Validity

In the legal stage, the validity of an "AI"-restrictive license may be settled on courts. Check the existing legislation each country for more information.

From an ethical/moral/political standpoint, though, this license might be useful, regardless of the outcome for the "fair use" question or the license's validity in any jurisdiction.

Applicability

It's a debate whether "Artificial Intelligence" operators respect such type of licensing, especially for closed algorithms and datasets, where audits looking for license violations are unfeasible.

Even though, using a licensing system such as Copy Far "AI" is a way to make an statement, expose the issue and make them accountable.