There's no guarantee that the page will still exist when you revisit the tab. I'm not sure I understand how keeping them open solves the problems bookmarking su

There's no guarantee that the page will still exist when you revisit the tab. I'm not sure I understand how keeping them open solves the problems bookmarking suffers from. What browser are you using that doesn't unload pages from memory when RAM becomes scarce? Have you not rebooted or upgraded your browser in a year? Has it never crashed with 300+ tabs open?