Did this forum even exist "back in the day" of Marillion? Have people even had enough interaction with Fish to be able to have a negative opinion of him? I'm not a fan, so I don't have much to say about him but it is a good possibility that either Fish fans here just haven't had negative experiences with him, or it happened so long ago and he hasn't repeated it that they've forgiven or forgotten.
With MP, I think people do give him a pass in a way, because they still follow him. They still like his work and/or want to like what's coming next. For myself, MP's comments are so disheartening precisely because his music has meant something to me. Let's say it was Fish saying all of these things. I'm not a fan, and I'm only a casual fan of Hogarth-era. So I'd probably shrug, think to myself that Fish was a bit of a jerk, and move on. I didn't care in the first place, so I write him off; no benefit of the doubt. With MP, I continue to hope that one day he'll stop all of this, and that in itself is giving him some benefit of the doubt. I'm not waiting for the next time he says something ridiculous so I can pounce on it; I'm hoping to never see it again.
I was starting to be encouraged recently in fact. He did that two part interview with the guy who sounded a bit like Lars Ulrich, and was pretty gracious. I was happy to see that. He did an interview with Eddie Truck and didn't say anything negative about DT at all. But then it was like Derek picked up the slack, and since this is Mike's band, I wish he would reign Derek in on that. Next was the DTF comment, which as I'm a newbie I wouldn't say it "offends" me, but it certainly doesn't make MP look good, at all. It was childish, to say the least. I get that we all have emotions and completely bottling them up is unhealthy. I would suggest that expressing them via childish outbursts on social media and his forum is also unhealthy. There are many other ways to go about it. He rarely - almost never - apologizes for his outbursts either. If they were a result of him being so full of emotion that he simply couldn't control himself, then he would, perhaps the next day, address it in a calm manner and say he was sorry for what he said.