Yes, it's useful in the right context, but the general context has been hijacked.But skepticism is about more than just debunking. Sure, debunking woo is fun and it can be important, but skepticism is a philosophy, a state of mind, a practice, and an approach to knowledge. Skepticism is epistemology and metacognition, knowing how to find out what is true and what should be debunked.
Yes, the word does a lot of heavy lifting. I think it's still useful, even if it is not a conversation for every occasion.