I found nude pictures of my mom and some pervert was commenting on her profile picture?

[CRAZY]

I'm a little bit disturbed by the social media surrounding my mom. My mom is a beautiful women. She's lost weight and she posts a lot of pics of herself on Facebook.These photos don't look like the average 38 yr-old mom selfies they look much younger with cleavage like most 14 yr olds at my school. I looked at the comments on her most recent pic and some guy comments "You are really f***ing hot." and some other stuff.It got me mad. My mom also has a lot of family pictures on her profile, is happily married and has 3 kids and that info is very clear. My mom's brother got mad too and wrote this long comment to him. My mom is also a very flirty person and texts a few guys from her work and says their convos are work related but I don't know. I was working on a school project and accidentally saw a few nude pics of my mom on her laptop which was a little shocking. I really hope those pics were meant for my dad and nobody else. I haven't told my mom about any of this of how I felt.Should I?