"Meaningless Phrase" is a meaningless phrase.

[Vitruviansquid]

Realtalk: Why'd you even be in an internet argument? You'd have to have absolutely nothing worthwhile to do with your life to be wasting it on trying to convince random internet dwellers about a thing, because what do you even gain if you somehow, against all reason and experience, convince a random internet dweller on some sort of point? At any time, about any subject, you find yourself posting more than 3 times in any sort or argumentative manner, you've already lost.

I don't think argument's a bad thing in itself.

The problem is when the argument is conducted dishonestly, with semantics.