[peey]

Your point of view is very clear: it's not a feature you're interested in. But it doesn't mean that it's not a good feature for the person who has opened the issue.

Instead of convincing them that it's a bad feature or talking about why it's uninteresting to you, just point them to a CONTRIBUTING.md and stop engaging with them after that. If they're actually serious about the feature, they can implement it in their own fork (which then you can request as a PR if you want it in your repo).