It may be one of those fonts that's supposed to help with dyslexia or whatever. Because unless it's serving some functional purpose I can't imagine why you'd want your phone looking like you're halfway through your sixth drink of the night.

How dare you curse me with this knowledge.

It's a weird font. Anything with a curved bottom dips below the level of flat bottoms.

They are, easily visible in the first of the 3 posts.