https://chat.bitcoinsearch.xyz/ is a cool project. Everything is sourced from mailing lists and a couple other places. Also gives links to sources, so it's more trustworthy than the usual "trust me, bro" chatbot.

It's not a useful way to browse the btc mailing list, but it makes it trivial to find answers to any burning questions you may have.

m00ninite

Daily discussion thread

saloon

I'm still amazed that no-one has built a better experience for reading public mailing lists. 
Is Pipermail 0.09 really the state of the art?https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2023-September/thread.html