Earlier quoted context omitted.
In this case I think it's more down to the fact that a "fan community" exists. The exact same response happens when a band gets proposed for deletion and someone posts about it on the band's mailing list. You get 100 posts about how this is in fact The Most Important Band In Genre In The Past Ten Years and Wikipedia's administrators must be knuckle-dragging cultureless slobs if they don't recognize that. Then semi-or…
I can see how the two are similar. However, the scale of the band page problem is, I'm guessing, at least 2 orders of magnitude worse, if not more, than the programming language clutter.
I'd have to try to look at archives to be sure, but I think fringe-physics is actually one of the reasons some of the science-related policies are written as they are. The answer to, "how do we keep this crap off Wikipedia?" was to have some sort of policy about the existence of peer-reviewed sources. (The peer-reviewed part is necessary, because a lot of fringe physics has papers up on arXiv.)