I partially agree with this. Yes, you should learn about things that you are curious about, but you can't just only focus on those things. I think only following your curiosity can be dangerous when it comes to learning. Learning about things, even if you have little to no interest in them, broadens your thinking and helps you grow. You could possibly discover something that you are really interested in by sitting in a class you thought you would hate. I do agree learning should be somewhat catered to your interests, but there should still be some kind of learning standard.

Looking back I have done this before with a lot of my assignments. I don't necessarily ignore the comments and feedback, but I do give the number or letter grade more value. I think giving feedback without attaching a grade to it could be a reasonable solution to this issue. It would help students grow instead of basing their success on a letter in the grade book. I'm just not sure if/how this would work in schools.