Here is what we have in the forum rules.
Avoid profanity, ethnic slurs, and inappropriate language. Do not insult other posters. In particular, do not attack the intelligence or honesty of others. Rebut the "stupid" or "dishonest" post and allow others draw the appropriate conclusion. If a bad poster is "spamming" such volume of poor arguments and nonsense that it would be a waste of time to respond, notify a moderator.
We will not be putting out a list of specific words that can and can't be said. Just use your best judgment. The moderation team will let you know if there's an issue.
Some people might think the rule above is overly stodgy, but my thinking on this is that there is a time and place for everything. I'm sure that at times many of us are in the mood to do looser, edgier stuff. I get that, but this isn't really the place for that. Best to do that elsewhere. Remember we are affiliated with the CODOH organization. We don't want to damage that brand by having the forum be a total sewer.
Many newspapers and media organizations are even today quite conservative in what they print. The rationale for this is that they want to maintain seriousness and credibility, and peppering a text with profanity might put off some readers and advertisers without any real upside. Academic publications likewise favor a conservative, professional tone.
Another consideration is that what we discuss here is controversial (to put it mildly) and things can get heated between the two sides. If people are constantly letting loose with insults and profanity that will tend to raise the temperature and will, as a rule, tend to lower the quality of the discussion.