[posobin]

You actually can amplify the page and add a comment! Other ampie users will see that you've been there and the comment, and you can see the list of amplified links of other people, e.g. mine: https://ampie.app/posobin Though you can't respond to others comments for now, but thank you for voicing the interest in that!

There are other extensions that provide just the commenting part (e.g. https://web.hypothes.is/, https://curius.app/, https://glasp.co/), but I find that they suffer from the cold start problem, i.e. it's rare to stumble upon comments for a page you go to.

[wizzwizz4]

You could add those to Ampie. (I say, as if that isn't something you haven't thought of.)

[posobin]

Sorry, what do you mean by "those"? Add comment threads to ampie, or integrate comments from other services into ampie?