I don't think that's fair. Yes the forum is very critical of TLs exploring the ways in which Nazi Germany could have done better. A fair deal of that is probably caused by the fact that these kinds of What-Ifs are very common and usually very poorly thought out (like this one, incidentially). There are many myths around Nazi Germany, many people still assume Germany was technologically superior in all fields and only lost to overwhelming numbers. Add to this the "coolness" factor that Nazi weapons and "Nazis win" TLs have in popular culture, and you get a lot of seemingly (to non-historians) plausible but ultimately severely flawed TLs about ways the Nazis could have done better. That leads to a certain suspicion and annoyance towards these kinds of topics. For example, the constant repeats of "how could Barbarossa have been won" topics when there really isn't much left about that topic that hasn't been discussed 10 times over, always with the same result. You can call it unfair that some TLs have to overcome this suspicion and others do not, but acting like there is a forum-wide conspiracy against certain viewpoints is uncalled for.
Plus you, specifically, clearly come across as biased in topics like this one. This isn't meant as an insult or even much of a criticism, really. Most posters here (me included, though I am probably just as often simply ignorant of all the facts) are biased towards some positions. And I also know that you are knowledgeable about WW2 history and do your research. But still your initial response to this thread speaks a clear language to me:
This topic has an incredibly threadbare PoD. It simply assumes somehow the Germans get an StG 44 with no regards to when the development of the weapon started or what changes in overall weapons or doctrine development have caused the accelleration of the project. But you don't seem to care for any of that, and instead immediately go ahead and imagine all the positives this change could have for the Germans without so much as a word about possible effects for other nation's militaries. And then you also just assume that even though TTLs development was obviously different from OTL, the Germans of course also get the better and cheaper to mass produce version shortly afterwards, despite the pressures that let to it's development OTL not being the same ITTL. Even as I try to keep an open mind to all viewpoints, thats a bit much to take, especially if other posters have already presented some of the effects an accelerated StG research could have on other nation's progams and decisions.