Well, but (all else being equal) good dancers are warmly welcomed in the average scene. Not only are they technically capable, but their skill gives them the ability to provide good experiences for their partners. These traits, while perhaps not sufficient to ensure social success, certainly are appreciated.
Nobody achieves significant skill in dancing (and commensurate appreciation of that skill in social settings) without working at it, which at times means, yes, taking it seriously.
Allowing it to be fun and being a good dancer are not incompatible. In fact, I would argue that one is required for the other.
One can take it seriously in a lesson (although in my experience, fun lessons are more productive with results) without being so damn serious on the social dance floor.
My impression of Chris' point is that he requires a certain commitment from partners to perfect their dancing or style, and that lightheartedness and play don't have a place at a social dance
Frankly, I'm still not sure what Chris is saying, but I don't care anymore. I doubt we would make compatible partners by his standards, and maybe not by my own either.
As to good dancers being warmly welcomed.. yes... when they have a good attitude towards the rest of the community. Good dancers who are jerks are
tolerated because of their dancing, but I feel the community actually develops better without people like that.
Frankly, my point all along is that
good dance skill is not enough to "provide good experiences for their partners". For it to really benefit the partner and provide a good experience, the attitude must be good as well. There's no getting away from that reality. As someone else pointed out above, a tanda with an excellent leader who is bored, haughty or rude is NOT going to result in improvement of the follower's dancing despite the leader's excellent leading. In fact, it might set her back!