I think that depends on context. I've been in situations where it is.
But has anyone in this thread said anything is bad?
I think so. Though I'm not about to scour 1000 posts in this thread to find anything more specific.
The only instance I immediately think of is
@Lanefan making up some version of a brief hypothetical I presented and then telling me that his projection of my approach onto his example is bad and illegitimate. Are you and
@FrogReaver and others outraged by Lanefan telling me that my approach is illegitimate?
You mean your approach to criticism in that interaction? If so then No. I think the particular approach you choose to try and criticize there ultimately diminished any potential criticism you were trying to make. When
@Lanefan immediately pushed back against your framing the scene in a way he viewed as failing at his goal, that was time to have a conversation like you would in the actual game to clarify IMO. Instead, you doubled down on what to me seems like an unimportant detail for the criticism you were trying to deliver. Others that tend to agree with your positions even followed up with a hypothetical example that
@Lanefan seemed to have no problem with.
This is a great example where this discussion got derailed not because of content, ideas, or criticisms, but solely based on the delivery of that content, ideas and criticisms.
But when I describe, without judging, certain resolution as map-and-key, it's considered an outrage!
For me there's a baggage that comes from our previous discussions. I think that gets in the way at times.
The overall tenor of the thread appears to me to be that some posters regard it as rude for other posters to talk about technical elements of D&D (and D&D-adjacent) RPGing.
I don't know how to say this, but I have no problem with the general concept of talking technical elements of D&D. I have no problem in general with criticism of D&D. I do have problems with certain deliveries. I also think there's certain criticisms that aren't productive, a hypothetical example might be: D&D is a bad game for X, Y and Z reasons. If that was presented as a personal value judgement, ex: for me d&d is a bad game because X, Y and Z, then no issue there.
I'll even add that while I tend to direct my comments toward your 'side', my side is often just as guilty of these same things. We all need to do better.