What's a good forum without a little controversy right?

I figure getting everyone's input on the subject is much better than me calling the shots, I mean I was asked to help moderate this thing and not to make the rules. The question is whether the forum should be rated 18 and older, or like any major public forum PG rated when it comes to content and language.
I edited a post of a fellow member containing what I and many others would consider a swear word and simply replaced the word with a collection of "*"'s. The message was still in tact and serves it's original purpose in the state it's currently in in my humble opinion. Following a small exchange of PM's the conclusion is this person is not at all happy with my actions but ok let's not get into all that. I will also refrain from reposting the replies from said party as I deem them rather unconstructive in the whole matter and to be honest a little hard to near impossible to understand as is. I have not taken any action other than a friendly request to "mind the language" if you will.
Now the issue is whether we consider the forum a family friendly place as I deem the hobby to be as such or do we only cater for the adults in the community. If adults only apply then I reckon a simple "Are you over 18 or not" question should be added to the sign up pages to avoid possible future legal action towards the website. There are forums I belong to like
www.theprofilebrotherhood.com with all this in place where you can speak your mind with no restrictions but on most if not all major RC Forums like RCUniverse, RCGroups, Runryder and the likes a PG rating on language is in place. Acronyms of course and simply replacing a few letters of a swear word with special characters is somewhat allowed to the moderator's discretion but guess what everyone just simply avoids using foul language.
I deem our hobby to be one of very few that mother/father can actively enjoy with son/daughter and thus feel the forum should be a place for the younger generation as well and a place where parents will be happy for their children to browse/use. Can I please have everyone's comments on the matter? Even if short and sweet.