Perhaps read the rest of the sentence as it continues with "any more than I had before using them [AI/LLM]". We're all only using these tools for ~2 years at most, so if some people are noticing degradation, I am saying that I haven't yet. And so when you say "That you don't notice it doesn't mean it isn't happening.", I agree. But that's off topic, because we're discussing what we've noticed, not what we haven't noticed.