Unpopular Opinion: The Developers should respond regardless of toxicity.
So...I'm not necessarily saying the Developers should lead the charge on marketing and information for a company. But I would definitely say toxicity is a very weak reason for avoiding it. A sharper reason is that Developers are not PR people. We do live in the age of people wanting to believe 'truths' though, even false ones, as long as people can continue to believe hype. In that regard, all industries of entertainment have started to front run their developers, and writers and all sorts of backline artists to create the illusion of honesty with a product. And people who have a good excuse for honesty will often ignore whether something is even slightly honest if it is good enough to believe the illusion so they can wear their proper fan hats.
Therefore a developer isn't doing anything more than a PR job when posting in regards to their product. All the hurt feelings just do not matter. Your video game company is raking in phat cash and they're going to get as much of is as they can, especially if they can make people blind fans. So a developer is being a marketer.
Your average commercial doesn't care about toxicity. Neither do celebrities who come on talk shows to promote their latest movie or project. And so, if a developers job is to promote the game by getting onto twitter or whatever medium of promotion, then they should post up, and completely ignore the commentary. As part of their job. For their paycheck. And if they are getting paid, they should be asking for more money to do said PR job (and by the way on that, yes, I know they are not because devs are underpaid and overworked, but that is actually a separate topic called is a developer paid what they should be for their work). I also would definitely not post as a dev for a game company unless I was paid for it extra, because it is exactly that, work.
Sorry if that cuts through all the hand holding, grabby tookus feelings, but video games, fun as they are, are a job. Nobody is friends, and nobody is really an enemy. There are customers and game employees. That is the relationship, and when it is looked at in that way, you can address this whole issue better as marketing. If someone is breaking hte terms of Twitter when they post, or some other medium, report it to that company. I think if a developer is paid for it, they should get out there, promote their game with their news or info or whatever, and get some thick skin. Many people suck, but some have points, and none are an excuse to stop promoting your game and doing your job if you are being paid for it.