The addon sends a request to the server every time the URL changes, without the user pressing a button (such as: a new tab is opened, the active tab changes)
The only reason for that is to get the comments for the current page. I could make this happen when the user clicks on a button but I thought that would make the experience slower and/or worse.
I do agree with the privacy part and I care a lot about that. There is absolutely zero tracking right now. There is no way to link or match requests to any particular user.
You can also verify that by checking the Network tab. The request will only include the current URL without any additional data.
I wanted to make this open-source to provide visibility but it will make it very easy for anyone to just copy it and submit as a new extension. If you have an idea about how I can make this open-source without people easily copying it, I'd be more than happy to know.