Same reason why that one manager who's always telling people how awesome AI coding is and how fast and effortless it makes development, isn't opening any pull requests.
Because, well, have you _seen_ its attempts to do that? LLMs just are not very good at programming. Really. There's a lot of hype, and billions being spent in marketing to make you believe that they are, but when it comes right down to it they are not good.
AI isn't what it's hyped to be
1. Not every issue is fixable
2. Not every issue is something the project wants to change
3. Not every issue is well enough defined to be sure when it's fixed
4. Not every issue can be fixed without access to the reporter's complete environment
Then you need to actually pay for the work...
If that doesn't sound very useful, well...
( "I, Robot" reference)
Think of AI as a Genie, and consider how well granting 3 wishes works out in most stories.
https://dmf-archive.github.io/
It doesn't even need to directly address any of it, just lump the dupes other, bin the paywall references...
--Wait, why am I even making a list? The AI can do it!
But i expect they offer it on ># stars repos at first to manage.