As a playwright looking to maximize audience attendance, I wish other playwrights wouldn't put inappropriate language in plays that don't need it. I'm not saying never drop the F-bomb or that playwrights shouldn't tackle tough subjects, but I believe harsh language should be used only where that kind of language would be expected--for example: a war story, cops behind closed doors, a snarky dramady or some blue collar comedy. So, now you have a choice of skipping shows with bad words and possibly missing out on sales for a popular show, or changing the harsh language and either watering down the dialog or risking the wrath of the playwright or publishing house. If it was me directing a high school play and the play only had a few bad words, I'd just change them. I know my audience, and I would do what it takes to make them happy. However, I would NOT choose a show that was--overall--inappropriate for my customers or one that needed more than a word changed here or there. Does that help?