Too simplistic/dismissive. To be contradictory in aspects does not mean incompatible. I am a highly contradictory soul.
Plenty of mistypes do happen however.
Yes, some contradictions (use of this term is now becoming complicated) are natural but only if they come from a single place, where, despite appearing to be in opposition, the two side exist in relationship with one another, inherently intertwined; because deep down, they are really about the same thing. It's like how 4s can be so arrogant, proud and disdainful, but also full of shame, insecurity and self-doubt; these come from the same place, the obsession to be unique and different, which creates a superior/inferior dichotomy.
However, some contradictions are actually incompatibilities (which is more what I meant) because they don't really exist in relationship to each other. I think this happens when there are inherent differences between your enneatype and MBTI combination. IMO
contradictions can exist within a type but not between the two. This is because they aren't related, as the "struggle" doesn't come from the one place. To me, these sorts of contradictions come from mistyping.
Positive? I'd think society nowadays was pretty leery of the Fourish emotional expression... I mean, maybe it's celebrated in places like the arthouse circuit, but, generally speaking, isn't melancholy kind of discouraged socially?
Well, to be fair, 4-like qualities are both venerated and reviled - even 4s do this themselves.

This is natural though. 4-like qualities always come into fashion when society is at its most hollow, affected, hackneyed and/or vulgar; so it has to exist in conflict with the mainstream culture to some degree. That is not to say the common representations/mimicry of 4 characteristics are accurate - in fact (to the real 4s in particularly) they typically seem to miss the point entirely. And the representations are more broad and entrenched than you realise - some examples:
Hipsters, counter-culture and anti-establishment sentiment; the self-help craze; rising interest in philosophy (particularly in young people); increased introspection and the cult of the individual; focus on authenticity of self and self-actualisation; the way everyone's getting a therapist to talk through their issues; pretentious rejection of what is deemed shallow, artificial and superficial; emphasis on expression of genuine emotion (being 'real') rather than on the polite and appropriate (but often expressed in negative ways); increased interest in artistic pursuits and accessing one's creativity; focus on distinguishing your self from the crowd and being unique; people taking pride in both their failures and successes; focus on living a life of 'meaning'; mainstream popularity of nerd-dom, indy music and other other traditional outsider groups (ie. it's cool to be 'different'); fascination with demonstrations of faux depth/insight/profundity of feeling/mystique etc (just check out the inspirational quotes and images out there)
Isn't the E-gram all about how our self-awareness is blinded, though? Doesn't that apply to Fours as well?
To some degree, however your eagerness to accept an unpleasant truth can help overcome a blind spot. For me, reading some 4 descriptions for the first time felt like a knife in the heart because I thought them so harsh and shocking. But I didn't deny their truth for a second - deep down, I knew it hurt because it was an accurate depiction of myself.
I’m torn on the ‘never’ position. I also find myself doubting someone’s claim about ennea/mbti type with certain combinations. I mean, a person would have to be pushed pretty hard in some weird way to end up with a worldview distorted in such a way that goes against their inherent strength. But I don’t want to say it can’t happen just because I can’t personally wrap my head around it. I’ll just say I have yet to get to know someone who claims to be one of the questionable combinations and to be convinced they’re correct in their assessment (…it’s not that I presume to know the person better than they know themselves, it’s more that I can’t help having doubts about things that don’t make sense to me).
Exactly.