I have no problem with people being pessimistic and no problem with people being concerned about areas that need improvement even during periods of prosperity. I love folks with a good critical eye and as someone who never played the game, it gives me more insight on things to look for.
But look at GDTs where we come back from a big deficit to win (such as against the Rangers most recently), and suddenly the dozen-odd post tirades of of "this team is an embarrassment", "Hellebuyck / Laine / Little / Whipping Boy Of The Moment X should be in the AHL", "this team deserves to lose" &c &c, they will not only dry up, they won't be followed with anything even REMOTELY resembling excitement at a great stroke of good luck. In fact, they often won't be followed by anything at all, in the GDT or even in the subsequent PGT. Because for those who actively want the team to lose solely so they can **** all over people's Corn Flakes, such an event was not a stroke of good luck, but an unmitigated disaster.
It's not a hard pattern to detect, like, AT ALL.