"subjective for some" takes place when one particular party fails to look at a situation objectively. They are relying on subjective opinion and they are wrong.
Sarcasm is an effective and appropriate communication tool used throughout the history of literature and language. I was not aware that Hacker News prohibits sarcasm and i would argue those of us who rely on sarcasm to communicate in many scenarios are being unduly silenced.
Strawman. It's your opinion that sarcasm has been "effective and appropriate" in communication. In domains of importance, like law, is is notably absent.
> I was not aware..
Not the case, just more sarcasm from you. Those who argue unproductively are silenced in some ways, btw, in the form of mod restrictions and bans. Most of us are able to communicate more effectively and agreeably without sarcasm, and care to do so - why waste peoples time otherwise?