They are the least common. It's just that a lor of people here probably mistype themselves.
Because....?
Yes. And also, many confuse being Sx with "love" "emo" or something, and there's a lot of F on this board.
I think the draw to sx is the idea of being sexy & attractive, not "romantic". Many people have a bravado about their own sexuality. Just like few people think they are of average intelligence & few think they are of average looks, few think they have average libidos. Then, they confuse sexuality with sx. Much enneagram literature notes that when an instinct is your dom type, you can also have the most
problems with it. Sx-dom can have intimacy and sexual hang-up issues, just as SPs can be ascetics & SOs can be painfully shy & withdrawn.
I think Naranjo (?) sometimes calls sx the "one-to-one" instinct, which seems less likely to cause confusion with "sexiness" (but it also doesn't describe the side that is not about people, but experiences).
I think a lot of sx are so-dom.... sure, they're attractive, impressive, and have a certain kind of intensity, but they don't have the "one-to-one" factor. They draw audiences, not individuals in an intimate way (and I don't mean "romance"). Not that I think sx is oh so rare (because I challenge that notion too), but it definitely seems suspiciously over-represented.
They are often like that. We can't deny it. But that doesn't mean that a lot of people here can be of theses stackings.
I don't think those terms are the fair way to describe their "vibe". Some of the descriptions use terms like "cerebral" or "intellectual", and I think that's much more fair. In contrast, sx-dom may seem less cerebral or intellectual, which can't be denied either

. Attraction is going to be more about what is appealing to individuals, and some people may prefer the so/sp or sp/so vibe to the sx one, especially if they themselves are sx last.
Though, for Sx, I think is true to say that a lot of Sx people have a strong sexual presence and attraction, even when they are ugly. It's just that a lot of people here are like "I know i'm not intense and sexual, but I'am very romantic and I really, really want a relationship, so I'am Sx" or something. That's in part why a lot of people believe they are Sx while they are not.
Strong presence, yes; attraction, no. I think this is an sx seeing sx through their sx bias

. I think sx types incur STRONG REACTIONS, but that can also include REPULSION. I'm pretty sure I've seen this noted in enneagram literature too.... That makes sense, as there's a "weeding out of people", whereas SO types are more like "the more, the merrier" or they're mortified to be noticed much at all.
I'm going to reference [MENTION=7140]brainheart[/MENTION] 's analogy of the instincts to bouncing balls... the first has the highest, second the middle, and last the lowest bounce. This shows how the dominant has a greater range, with the strengths & the problematic areas being more apparent. The last shows the least range, making it less strong in a positive way, but often less problematic too.
I think a lot of sp/so and so/sp probably choose a mate quietly & settle down contentedly (which might look dull to some), whereas an sx may find things a lot more stormy in their relationships.
I think the results are biased by the currents values among internet users, especially the NF ones, and how they can see ach instinct based on that. Sp= individualistic (that's me!), Sx= romantic (that's me!) So= attention whore (groooss!).
I'm a bit reluctant at taking that as an accurate way for typing.
Mostly true, but it's not just NFs. I think most people like to imagine they are individualistic & not attention whores. I explained what I think the appeal of sx is to most...