I believe an open source ranking algorithm is antithetical to good search, sadly. It hands spammers a recipe for how to push past legitimate sites to dominate the search results.

The topic of ranking mechanisms sits at the core of many of our issues with social networks and centrally operated instances. I think it deserves far more attention.

And these algorithms should be open source and we should be able to pick our own and mash them.

Related:

Build Your Own Timeline Algorithm: A Blueprint

https://blog.mozilla.ai/build-your-own-timeline-algorithm-a-...

This is sadly probably quite true. I'm sure there are workarounds, like slightly changing it every month or two, although that would require quite heavy maintenance. Perhaps the core algorithm stays the same but some constants that decide on the weights of different things are randomised? Not too sure.