Start with the thought that stayed.
There is a small difference between collecting an interesting piece and keeping a question alive. One adds another item to a list. The other changes what you notice when you read the next page.
Try writing down the question that remains after you close an issue. You do not need to resolve it immediately. A useful question can make the next reading session more deliberate.
Give your attention somewhere to return.
An archive is easier to revisit when you remember why a piece mattered to you. A short note beside a saved issue can carry that context: a phrase you want to examine, a distinction you want to test, or a conversation it brought to mind.
In this example, save an issue to your reading list and open a response draft. The draft belongs to your browser until you choose to export it.
Let the next piece complicate the first.
Reading can be more useful when it leaves space for a different explanation. Keep the original thought nearby, but allow another piece to change the terms of the question.
A considered reading practice does not have to end in agreement. Sometimes the useful outcome is a more precise thing to ask.
What question would you want to carry into your next reading session?