Does "irregular verb" have some metaphorical connotation I'm not aware of?
Yes.
So you have a criteria for being skeptical of (I won't say "explaining away", which would be presumptuous) my arguments having to do with the style of my argument rather than its content.
No, I am criticising the content of your argument. You are calling for a refusal to engage with arguments you specifically concede are apparently persuasive ("dazzle their fans"), because they might lead to "unproductive avenues of thought", based on an evidence-free assertion that their originators just want to be different. You provide no basis for distinguishing "narcissistic contrarians" from people who sincerely take non-mainstream positions. You do not have special insight into the internal minds of your opponents.
I'm content to engage with Camille Paglia and Nicholas Taleb and conclude they're wrong. I don't need to go further and engage in armchair psychoanalysis of people I've never met.
I am deeply suspicious when people try to explain away their opponents' beliefs, rather than defeat them intellectually
Part of your misunderstanding, I think, is to assume I have an "opponent". I've read 3 of Taleb's books, and will probably read him again -- maybe some of the more technical stuff he puts on his facebook page, when I'm willing to work hard enough to understand it, but sometimes I take him with a grain of salt, or think to myself "Oh I wish you wouldn't do that". I think I've read enough of Paglia (which isn't much)...
The recent discussion on neo-reactionary-ism brought out some references to (intellectual hipsters and) meta-contrarianism linking to a 2010 posting by Yvain.
For some time I've been thinking about "narcissistic contrarians" -- those who make an art form of their exotically counterintuitive belief systems, who combine positions not normally met in the same person. There can be good reasons for being a contrarian. If you're looking for a scarce resource, it may help to not look where everyone else is looking, hence contrarian stock market investors may do very well, if they actually see something others don't; same with oil explorers. Less creditably, I believe Nate Silver's The Signal and the Noise made reference to the way a novice pundit or prognosticator may have nothing to gain by saying anything like what other people are saying, and much to gain, in taking some wild extravagant position or prediction if it happens to attract an audience others have ignored, or if the predictions happens to be right.
The Narcissistic Contrarian is much like the Intellectual Hipster, but more extreme. The Intellectual Hipster usually stakes out a few unusual or incongruous positions, to create an identity that stands out from the crowd. The Narcissistic Contrarian is constantly dazzling her fans. Something written by Camille Paglia made me think of the idea in the first place. Nicholas Taleb is another suspect although I think he started out with some good ideas. If she/he manages to get a fan-base, they are apt to be pretty worshipful -- they can't imagine being able to come up with such a wild set of insights. The contrarianism is for its own sake rather than an attempt to find and settle on some previously undiscovered thing, so it particularly likely to lead people astray, into unproductive avenues of thought.
Does anyone else think this is a real and useful distinction?