As one of the answerers on that question I can say my post contained a plethora of swear words, which I hid with a spoiler tag. The words were key to the point, and I think we are mostly adults here. However, the spoiler tag keeps a huge collection of such words from being blatantly thrown in a readers' face (or the face of somebody reading over somebody else's shoulder).
This really is a case-by-case thing.
I see no reason for a hard-line "no curse words, period" approach, especially on a site about moderation where the topic will come up.
Keep in mind that some of the real primary reasons for discouraging curse words are:
- To keep the tone of the site at least somewhat civilized.
- To discourage outright offensive statements targeted at other users or readers in general.
As long as these goals are being met, I don't believe there is an issue.
I think there's no reason to discourage the use of curse words in general, because usages in poor taste will be blatantly obvious. We don't really need to define any sort of special policy, or label encouraging/discouraging usages as "good" or "bad" ideas. If somebody comes and posts something blatantly offensive, it will get flagged away by the community - often quickly.
I like to think we're adult enough here to recognize when curse words are harmful vs. when they're just innocent key components in a conversation.
In fact, to go on a bit of an off-topic mini-rant, I think that sometimes certain cultures' tendency to over-censor such words ends up doing more harm than good because it prevents people from developing the ability to recognize harmful vs. innocent usages.