Since there is no list of foul language on Adsense/family safe search, here goes: "s***, a**" - are these considered as foul words? Do I seriously have to replace them with "something, butt?" Also, are there any other words that would trigger family safe filter that aren't intuitively bad? But the main question is the bold one though.
I generally avoid swearing on my sites and blogs because it doesn't sound very professional. But I also think it depends on the content of your sites and blogs.
@the mod for the infraction - it's about Google, not Adsense specifically. It's about BOTH Adsense and Search engine (family safe part). The infraction shouldn't be there, and the topic shouldn't have been moved falsely.