But they're not challenging them, are they? If they were challenging the opinions then there would need some sort of rebuttal. Instead they're essentially saying that OP worded it wrongly and therefore their points are invalid.
Call it what you want, pushing back on someone's opinion is acceptable, fine, and should be encouraged.
What we need to stop doing is making arguments that something being an opinion means it shouldn't be pushed back on.
It's one thing if someone says I like broccoli better than pizza, it's another when someone makes a statement that is not about their own preferences. Many of those opinions are bad and should be challenged.
this is slicing and dicing of words to try and weave a narrative.
The poster reacted to an opinion negatively and pointed out that people need to stop that behavior.
Can you imagine if someone said "raping children should be ok" and someone else tried to argue that saying people should stop raping children means they attacked the person and not the opinion?
right, they challenged the opinion, stop with the wordplay.