What I really don't understand is why have nobody ever bothered to decentralize Pull-Requests and Issues data, just like the code sources. Why can't I pull all

What I really don't understand is why have nobody ever bothered to decentralize Pull-Requests and Issues data, just like the code sources. Why can't I pull all the PRs from a git forge to grep through them locally? Well, maybe someone did try to figure that out and perhaps even did, then I don't understand why that never popularized.