Both sides do it when they want to prove a point.
There's one side that does it a lot more than the other.
However, maybe we can agree on this: it doesn't do any side any good. It doesn't make for any type of productive discussion. It's always peppered with hot takes, hyperbole, insults and confrontations that spill over multiple threads. It's childish.
And it leads to untenable and illogical assertions that go much further. Apparently, it's not enough that Domi is having a great start -- one can't possibly be happy about that while not feeling the urge to crap on Galchenyuk. So what if Galchenyuk does well with Zona, becomes a full time center and/or scores 30 plus goals? Does it really matter how well or how badly Galchenyuk does if Domi fills a need and shows he can be a top 6 center over a full season?
It seems as if the minute a player is traded away, he needs to be cut down to size in order to feel better about the incoming asset. Why don't we skip that non-essential step completely?
Or, better still, what if we make attempts to value both players in a transaction as objectively as possible? Or is that too much to ask?