> Like, OK, that's their problem, but what's that got to do with you?

If a social creature plays chess in a club where everyone else cosplays, the first thing that creature will do is find a better group of players to raise the challenge. Most serious chess players end up doing that sooner or later.

Rationalists are also social creatures, so that principle remains the same. To pretend that a group of cosplayers wouldn't affect a rationalist's ability to be effective is, ironically, irrational.

Also, there can become serious negative implications to terminology at the critical mass of cosplay the author implies in the article. I have neighbors who are contractors and went in on a house together. They split up time amongst their families, using it as an investment and vacation house. For very good reasons they never refer to what they are doing as "time sharing." :)