I mean...just in general, it does. That's kind of what this topic is about, right? Setting a limitation on rudeness when it comes to honesty...you can believe whatever you want about how things should be said, and you're always free to say them however you please. But that won't change the reality about how they'll be received.
Life is full of 'however' and 'but' and limitations and exceptions. There are very few hard and fast rules about how humans live in this world. Expecting everyone to do one thing one way without any strings attached is naive at best.
You'd be surprised how uncommon common sense can be, especially in situations like this. If that kind of behavior didn't exist, I wouldn't have brought it up. Not saying it applies to everyone, just saying someone out there needs to be told that you can't and shouldn't critique everything.
Maybe I'm being a jackass, but we're not all adults here...is there even an age requirement for this place?
Anyway, yeah, like I said, life is full of exceptions, like the 14-year-olds that I know are running around here somewhere. You never do know where someone's art is coming from, or what was behind it. Maybe that's why "I'm just the latest to add an addendum": because the situation is just complex enough to require one. Or two. This isn't black and white, it's art.
I really think that if you don't believe critics should feel restrained in any capacity, you should run with it. Deliver critiques however you want, and let the artist deal with it. Even if they get upset, well, someone's gonna come along and upset them sometime; they should probably get used to it.
But that goes for you, too. If the majority of the people on this Earth believe that critiques should come in 'compliment sandwiches' served with 'kiddy gloves', that's something you'll just have to get used to. All the 'shoulds' and 'shouldn'ts' in the world won't change it.
What might change it is people just doing whatever they feel is right regardless. =/