I am not a lawyer or a doctor but it seems to me that there is nothing wrong with offering generic medical advice.

Sexy doctor (to my limited knowledge) is offering sensible generic advice, she is not offering specific medical advice to an individual with a specific problem. If she was, she could expect payment and to offer her medical credentials, but she is not.

Many people offer useful advice on this site, that is what QL is for. Why should it be any different for Sexy Doctor?

I am an investment banker. If I thought I had any professional knowledge that would be useful to memebers of this forum, I would be happy to give it. I don't think anyone would be remotely interested and that it would be of any use, so I won't do so.

However, if anyone wanted to use my professional services, I would charge them and then would also be happy to prove my professional qualifications. Until then, it is really no one else's business.

We had better live as we think, otherwise we shall end up by thinking as we lived. - Paul Bourget