Good decision.
AI programming is fundamentally different from programming and as such the discussions merit to have separate forums.
If r/programming wants to be the one solely focusing on programming then power to them. Discussing both in combination also makes sense, but the value of reddit is having a subreddit for anything and “just programming” should be on the list.
They're not banning "AI programming": just specifically large language models.
> AI programming is fundamentally different from programming
It's really not. Maybe vibecoding, in its original definition (not looking at generated code) is fundamentally different. But most people are not vibe coding outside of pet projects, at least yet.