The new mantra of "don't yuck someone's yum."

I'm seeing this phrase all over recently for some reason. I get the idea that hating on something for no reason can be pointless. But I'm seeing it used in ways that that don't make sense. It's ok to judge people for liking things that suck. And the idea that "it's not hurting anyone" isn't always true. What if your "yum" is gossip? What if your "yum" contributes to misinformation that can actually hurt people? Or any other number of hobbies or interests that are actually destructive or negative. It reminds me of the old mantra "don't kink shame." What if your kink is killing innocent animals for a thrill? I shouldn't shame that?

I guess the thing that mostly bugs me about it, is that it seems like once you come up with a catchy phrase, people think it's ok to turn their critical thinking skills off, and repeat it as if it's self-evident even though it isn't.

EDIT: 1) I feel like some people just don't understand hypotheticals. I'm not saying "this is a bad phrase because people use it to promote animal abuse." I'm saying "think how you'd feel if someone used this phrase to justify something YOU think is unreasonable." This is not a specific example from reality. I'm asking you to use imagination to understand the point I'm making.

2) Aside from the rant above, definitely the main reason I don't like the phrase to begin with is that it just sounds stupid and childish. Ranting about people who shallowly seem to think it's NEVER ok to be judgmental all stemmed from that.