Banning Dynamax would be a mistake.
The game has to be recognisable as the one on the Switch, diverging from the official metagame too much is going to cut off the supply of new players arriving here for strategy advice. There's already a lot of jargon here without banning major game mechanics, you don't want the guides here being useless for console play. In a way it really doesn't matter what you guys think, this is the game for this generation.
I've been playing it online and there are lots of counter strategies being developed. For example stalling it with methods from Sturdy/Focus Sash to Protect/King's Sheild to Fly/Dig/Dive. At the very least that needs to play out before considering a ban.
I think a lot of people (including me) have been using the same strategies and pokemon for years, those who are the most upset by Dexit or Dynamax just don't want to change tactics they have mastered. That's the road to stagnation.
The one thing is that Dynamax had to go hand in hand with Dexit, I don't think there should be a metagame with Dynamaxed Pokemon unavailable in Sword/Sheild. Maybe this is causing some frustration as those Pokemon haven't been designed for Dynamax.
I think some of the tiers should be consolidated and renamed. Have a "Unrestricted" tier which is basically Ubers with no Dexit no Dynamax. Have a "Console" tier which is the Switch ladder rules (Dexit, Dynamax allowed, no legendaries or Gigantamax) and is basically OU. Have a "Little Cup" tier which is no Dexit no Dynamax basically UU and has your bans and suspect testing etc. Hopefully that makes everyone happy.
1. Why should we care about “diverging” too much and have it be “recognisable as the one on the Switch”?
People can freely play VGC and Battle Spots, even on our simulators, as well as AG. We also historically had analysis for prominent Pokemon in all 3 of those formats.
We care more about our own meta, which people are free to play or not play, more so than appealing to a niche group of people.
2. Your counter plays are very ineffective at stopping Dynamaxing, much less the remaining parts of the meta game.
Protect/King’s Shield doesn’t fully protect you, and they still get the same boosts as they would without protecting.
Sturdy is limited to a few Pokemon and both it/FS can be broken with Stealth Rock or Ice/Rock Max moves.
And also Dig/Fly are trash moves without Z-crystals/Dynamaxing.
You also have to understand that the most broken part of Dynamaxing is the snowball effect, where its very easy for sweepers to just clean up your team with no thought put into it. That and being used as braindead comeback mechanic where your last Pokemon is impossible to kill as you counter sweep your opponent with ease.
3. Even if banning Dynamaxing was about “ugh I don’t want to change my strategy”, the only reliable strategy against them is Ditto, which isn’t even universal since Hawlucha exists and Ditto doesn’t copy the Unburden Boost.
It’s no secret that the Meta is now HO with Gyara, Hawlucha, Exca, Darm-G, Ditto, and something extra. This is all thanks to Dynamaxing since its the counterplay isn’t guaranteed (such as Ditto vs Hawlucha) or isn’t actually counterplay (such as protect spam).
5. I have played National Dex OU far more than regular OU, and while it’s more manageable over there, it still is really stupid broken. Even with Mega Evolutions, Exclusive Z-moves, and more counters to the abusers, you still get can easily be swept by the snowballing effects and have the same braindead comebacks as the limited dex is, but at least you get bandaids like Mega Aggron, Mega Slowbro, and Chansey.
6. Speaking of which, the switch games can already be defined as the “generation with most of your options gutted” in competitive, since it’s just like that in the story mode and has as much respect to these shitty games as GameFreak has for its fans.