Tricky, because some people take down blogs because they no longer want anything to do with it. Are you going to resurrect things against their will? What about dead people? What about their relatives? All of that before we’re getting into copyright and profits (for which I have much less regard).

I actually like the web page https://campaignwiki.org/rpg best. I wrote the code based on other “planets” – web based feed readers that just take all the feeds, sort articles by time, keep at most 4 from each blog, and take the 100 most recent ones. Everything else just falls off the bottom. It’s really important for my peace of mind have no unread count. 😅