My view on this is simple:
If you're a bot which will ignore all the licenses I put on that content, then I don't want to you to be able to reach that content.
No, any amount of monetary compensation is not welcome either. I use these licenses as a matter of principle, and my principles are not for sale.
That's all, thanks.
How can you tell a bot will ignore all your content licenses?
I think the problem is that despite the effort, you will still end up in the dataset. So it's futile