You're reading too much into my comment. Didn't I just say that not knowing how to dance well is not a negative? Just because you don't dance doesn't mean you're not confident. And just because you do dance doesn't always mean you're not shy. But if you dance well, it does show that you're a fun guy. And that's part of personality. And it's attractive.
Dancing well allows you to:
1. Automatically make yourself popular with all the women because of the lack of guys that know how to dance
2. Make contact with almost any girl cuz no girl turns down an invitation to dance unless you're a weird dude
3. Get the girl by herself without her friends bothering you
4. Escalate physical contact in a legit way
5. Build a ton of rapport cuz after you guys dance a couple of songs, it feels like you've known each other for a while
You can see why I make such a big deal about dancing; if you're charismatic and all you do is dance and have fun, you randomly attract girls without even trying. And learning how to follow a beat is not hard. Anyone can probably learn it if they spent an hour trying or something.
But if you don't dance, fine, there's other ways to get the girl.