#5 should be true no matter what kind of suggestion you are giving.
Funny how often people assume that if someone is alone then it’s because they are dirty or looks ugly/unfit.
I didn’t read that as an assumption, I thought it was a genuinely good tip. Some people (especially function over form types like myself and many other computer people) don’t make hygiene/appearance a priority.
This turns people off. Sometimes people need to be reminded of that.