Turn off underlining in profiles? SEO related?

Certain stuff in profiles is underlined and some not. I can't tell why and how to change. I thought I read somewhere a while ago it was related to SEO, but I don't recall now. I did some searches but couldn't find what I read, so I was wondering if you could point me in the right direction. How to turn off, edit, etc., or some explanations on the value of leaving it on. Here is an example.


Thanks, David