Nothing in that discussion would warrant a black-balling. I can't imagine anyone getting black-balled until they've been here a year or two, or been very verbose over a period of months, and shown over time that they are The Right Stuff. Obvious trouble makers can be dealt with by the mods. The thread was locked as it was a bit of a muddle of ideas (CPU stalls and low-res textures), and a new posted mentioning 'xbots'.
There's a qualitative difference in the types of posting I'm thinking would be removed. I can't really convey that. It's not a problem of being wrong (or even right and just against the views of the mainstream B3Der!) or naive. It's about being a habitual noise-generator. it's a system new users wouldn't even know exist. they come, post, discuss, possibly be moderated. It's only when MVM's start to tire of them that they've face removal, and that will depend on who the MVM's are. If you trust they aren't short-tempered or arrogant or intolerant (and going by their post histories, they should be assumed not), you should trust they wouldn't want to remove someone with good reason.