It's not even "word play." The word "promiscuous" was used for hundreds of years to mean "indiscriminately mixed" before it had any sexual connotation.[0] And yes, JSLint is opinionated. That's its whole raison d'etre.

It's a tempest in a teapot, not at all comparable to the LambdaConf thing, which I almost wish I hadn't learned about.

[0] http://etymonline.com/index.php?term=promiscuous