I see what you’re saying here and am not even doubting your opinion on the dial. but there are two ways of telling your opinion, I just don’t agree with the option you chose
when someone is obviously happy with the choice they have made and express that by showing a picture of it, I find it kind of untactful and rude to just comment on this by saying “it’s awful”. just let the person be happy with it
there must be and there are (!) different ways of expressing your opinion that don’t include crushing someone’s happiness
and as you said yourself: “express their opinion that can be of help to others”
your first attempt was not of help to anybody
+1: well written.