Also, only really works if they are “attempting to gain a higher moral authority” (as OP says). As if that’s the only reason people would argue a point. I think it says something about OP that they take that as a given for arguments. I can immediately imagine scenarios that one can argue against a thing that they themselves participate in.
“Hey, smoking is bad, kid. Don’t do it.”
“But you smoke! And I look so cool with a cigarette!”
“Yeah, it’s a habit that’s very difficult to break and it makes your life worse in every way. I know from experience.”
“No you.”
But I agree with your main point,
But pointing out the hypocrisy is technically “off topic” if you’re arguing whether X is actually bad.
It’s considered a fallacy exactly for this reason. When you’re debating a thing, you’re way off the map if you think that’s your winning move if you’re arguing in good faith. An argument should be about showing your point is correct, not that you’re better than the other person. But Mr. Wang up there may only view arguments as a competition to be won morally.
You can put them in between 2 bowls with their (the bowls) rims against each other to create an oblate spheroid-ish thing, then shake it real hard for a few minutes. It should remove the shell pretty eaily, if loudly.
Edit: Sorry, turns out, that’s garlic cloves. Shrimp peeling is really only easier raw. You can rip the legs off and just give a squeeze and it’ll pop out of the shell. In my experience, once they’re cooked the shell will break up much easier. As someone else said, a stock is your best bet if you really want to avoid peeling. I mean, technically you can eat the shell if you make sure to grind them up completely when you puree them. I’ve never tried anything with the shell still included, so I can’t speak for the taste, but you could try a bisque if you’re dead set on not peeling.