Maybe this is a question for a survey: Who opens links from unknown posters?
And why?

If you open such a link, you shouldn't complain if it's obscene. Just as if
you answer a phone call with an "unknown caller" ID, you shouldn't complain
if it's a telemarketer.

I don't even open posts, let alone links, from people I don't recognize. I
wait for someone else to do the honors and then check out the reply. (It
worked this time; I never saw the original message but I've enjoyed all the
brouhaha it's caused!)

Felice