These models are far too expensive to run yourself and independent LLM providers of open models do even more secret nerfing than the original creators because they have no reputation to lose.
It's not just the weights. It is the system prompt, harness, safety filters, etc. Those can affect performance of the same underlying model significantly.
Nobody will cry when their AI girlfriend model gets revoked. You'll always have the weights.
Presumably for the low cost of spinning up an H200 or two you can use the weights forever.
No more claiming your LLM gets nerfed. No more claiming your video model can't do Spider-Man anymore.