Skepticism is a hijacked term these days. The only way to tell the difference is in behavior. Traditional skeptics will doubt, understanding that most of the work is still ahead of them; i.e., evaluating evidence to determine the veracity of the claim. Some people throw around the term to simply refer to a new brand of denialism without considering evidence.
It's gotten so bad that woo masters now call traditional skepticism 'pseudo-skepticism' in order to avoid providing evidence for claims and dismiss actual scientific studies that show they're full of shit. This is largely due to the fact that skeptics have concluded that woo masters are pseudo-scientists.
In short, the only way to tell is if the self described skeptic does the homework. If so, engage them. If not, tell them to fuck off.
It's gotten so bad that woo masters now call traditional skepticism 'pseudo-skepticism' in order to avoid providing evidence for claims and dismiss actual scientific studies that show they're full of shit. This is largely due to the fact that skeptics have concluded that woo masters are pseudo-scientists.
In short, the only way to tell is if the self described skeptic does the homework. If so, engage them. If not, tell them to fuck off.