On the rules page, there are a number of categories:

• Possible Errors
• Best Practices
• Strict Mode
• Variables
• Node.js and CommonJS
• Stylistic Issues
• ECMAScript 6

While ES6 used to be special, it has now become "the default", I'd say. Node.js and browsers support most of it these days, and people have become familiar with it.

My suggestion is to remove the "ECMAScript 6" category, and move its rules into the other categories.

Why?

For example, if you're only interested in "Possible Errors", you'll miss out on several helpful rules unless you manually filter through the "ECMAScript 6" category.