Think of how some people stutter words, etc when they are sad.
I allow you, thinny to say your opinion why can i not then say my opinion without being critizised or something.
I have read some about singing, etc so i say my opinion (Like everyone else here) on what could be the problem or how that is done, etc.
I dont tell the heart surgeon what to do and what to not do if i dont know how to perform a heart surgery (I dont know how to).

Jon can kiss the women in the crowd if he wants to but any woman or man can have an STD (You can look completely normal and have an STD). Just saying that there is a risk and if i was a singer or something i wouldn't kiss a stranger i didn't know. Just don't want jon to have a health issue, std or something.