I'm going to say something quite boring (so what's new, you're no doubt thinking).
The GDTs will improve, and this thread will not have been in vain, if we each do a little bit to pitch in.
So...
To those who criticize players: go for it, criticize and bemoan their performance to your heart's content, but just make the effort to think twice before calling them "garbage" or other dehumanizing names, or attacking their basic character as human beings or concerned citizens.
To those who tend towards negative assessments of the team's performance: as for the above, go for it, criticize, bemoan, and exorcise your bile-filled despair as much as you like.....but! every once in a while (it does not have to be frequent), if the team shows some good hockey for a period or so: recognize it. That single recognition, even once in a blue moon, will lend so much more weight to your more disgust-and-doom filled pronouncements. We will all think:'wow man, the integrity!'
To those who tend to defend players (or the team as a whole) from other posters' critical comments: cool. The public defender has a role in society as well as in our board. Wear your champion-of-the-maligned cape proudly. Just remember: your defense will be stronger to the extent that it is specific, i.e. to the extent that it provides specific counter-arguments, with evidentiary support, to the critic's charges. Your defense is not strengthened by telling the critic that they are a spoiled fan, or that they should go root for another team.
To those who have given up on GDTs because they're not as good as in the good old days: c'mon now. Don't be like that. We need you and want you. Come back! Join the imperfect and motley crew, and try not to let the worst of it get to you.
To those who post long, tedious posts with presumptuous recommendations for the mild, incremental reform of GDTs, (whilst themselves only occasionally posting in GDTs): I don't know what to say. For you there is no hope.