I keep seeing that particular range of percentages on the site, 90-93%. There a joke I'm missing?
Joke explaination team to the rescue!
The roots of this meme raise from one of the darkest pages of forum.dominionstrategy.
I'll tell you that story as I remember it, for I was there, and saw the darkness that resides in the hearts of men.
Once upon a time a new user posted a game report thread about how "KC is far more skippable than people think". The tone of his following posts was at times a bit self-glorifying and condiscendent, and this generated a few stingy answers from some forum regulars. The conversation got more and more heated, while some other posters were making fun of the pointlessness of discussing
exactly how skippable King's Court was. (people were starting to talk percentages, and 90-93% was an estimate of how often you go for King's Court)
The user in question took this last group of comments as personal offenses, civilty declined, and the thread was locked and the user asked to be banned, and he was satisfied, even though he didn't really make any bannable offence that I can recall.
If you want to live the whole story almost as if you were there, you can touch this script of remembrance:
http://forum.dominionstrategy.com/index.php?topic=14521.0;nowapPPE:3