When you say "increased" you're implying at least two distinct levels of skepticism.

Well, I'm actually treating scepticism as a continuous variable, let's say defined on non-negative real numbers for simplicity, where 0 means "I Believe!" and some sufficiently high number means "You're lying".

Could you give me an example of a claim that faces your lower level of skepticism?

"It's raining outside"

"This thing weights five pounds"

"Free-falling objects start to accelerate by about 9.8 m/s/s"