As a bit of a conspiracy theorist myself I thank you for your more thoughtful stance toward myself and my tribe, and can confirm that your concerns (that slurs like "stupid", which are themselves stupid ironically, do indeed magnify the problem) are valid, at least to some degree.

But then on the other hand, I believe that the conversations and "thinking" on display in threads like this (and the many others that pop up from time to time) are beneficial to our cause, as it plausibly results in a kind of effort free recruiting. Of course we'll never be popular in intellectual forums like HN, but if one pays attention to comments on more "super-mainstream" (ie: non-HN, non-Reddit social media, like online newspaper comment sections or in YouTube comments from local TV stations), I sense distinct growth in average sentiments in our favour. To what degree this can be attributed to studies like this and the subsequent forum meme wars is obviously purely speculative, but I suspect "there's no such thing as bad publicity" is applicable here.