The military has a lot of rules and some of them are hard to follow every day in every instance. We're not saying that everyone should be prosecuted under any of these articles, we're just saying that a lot of people technically break these rules.
1. DISRESPECT TOWARD SUPERIOR COMMISSIONED OFFICER (ART. 89)
"Any person subject to this chapter who behaves with disrespect toward his superior commissioned officer shall be punished as a court-martial may direct."
There are many ways to fall foul of Article 134, but the most common is probably using indecent language. Any indecent language, especially if it causes "lustful thoughts," can trigger the article.