My theory is that a number of "devs" spent thousands upon thousands of dollars worth of tokens to walk Claude into building small segments of code. Then when these two vibe coders input very similar prompts, Claude used some of the previously generated code to serve up the same solution to both. Efficient, unless you want to profit from the slop code.
As time goes on, all Claude is going to do is throw previously generated code, others paid Anthropic for to "develop", into its own blender, and serve it up as as some weird Frankenstein's monster software.
If you are a developer, it might be time to start patenting ideas because copyright is fucked.