A lot of times people will give you feedback with a lot of hyperbole because many designers (and developoers) will simply not do anything without the volume amped up to 104db.

People with disabilities often will not lead with, so I have this condition. They'll just say they are having a hard time reading your site/the fonts are too thin/the contrast is off.

If someone is saying your site is hard to read, listen, because many others are having the same problem.