I think the right place to draw the line is: speculation is fine, medical advice is not. Of course, we can argue about what constitutes medical advice. I think

I think the right place to draw the line is: speculation is fine, medical advice is not. Of course, we can argue about what constitutes medical advice. I think there needs to be a call to be a call to action (IMO, an implicit call to action would qualify if it's strong enough).