This seems an extremely problematic reasoning, justifying an irrational and toxic response, through the means of attempting to explain it. It's like saying "So if people are wondering why schoolshooters take a rifle and kill 4th graders, it's because they don't get enough female attention and strugle with parental relationships". Yeah, sure, but the main reason is that they are mentaly derranged people.
Just because some vocal members of the early "DIR" community existed early in the years, that don't even were members of GUE or are members of the GUE currently, justifying and dismissing standards and approached, is extremely emotional driven, and personally I would prefer to never be a buddy of such diver that puts their feefees above their and thus also my safety.
Finally, all this "attitude" towards GUE, is not towards GUE but GUE divers, unless if all the people you refer to personally spam gue's mailbox. And I don't understand why any GUE diver should show any understanding towards such toxicity just because they tried to improve themselves, which originates from a period that many of them might not even be born yet.