I have had a talk with Ilona about this problem some time ago, since SM is a game for "Everyone", not for PG-13 like BD, a chat system is pretty hard and close to impossible.

I have proposed a preset chat system, so like u can only say the allowed sentences that are given to u (much like the radio chat in FPS games). It's not a good one but it's the best alternative that are possible for the game.

about Facebook regulation, BD is on facebook also, and since it has a chat system, I doubt Facebook will have much impact here. If it is, it's mostly becuz of the age group that I mentioned above

Doesn't there need to be a poll to necro bump an old thread?

Deleted and as Aister said before the bump this is really not possible in the way you want it to be.

At least it is something.

I have a suggestion. Would if there were words flagged (or like what 4chan used to do. For example if you say certain words, like egg, it is replaced by other words, like duck – so instead of talking about an eggroll, you end up talking about a duckroll). All we need is to create a metadatabase of all words that are questionable and censor them (and possibly change them all to a funny sounding word, like supercalifragilisticexpialidocious).

As I am sure you have seen people will always find a way to bypass a censor so that really does not work.

Censors work as well as the amount of programming that goes into them. In theory, they could be quite accurate. (For this instance, I think accuracy could be thought of as statistically unusual for an undesirable occurrence to be encountered)

There are only a few steps to make an accurate censor:
1) Generate as much metadata of inappropriate language as possible
2) Write a program (I bet many already exist) that:
a) creates as many variants of words/phrases where the intended morpheme/lexeme (of any word can exist) still exists (especially important for 'sandwiched' words)
b) finds as many possible symbols that can replace letters (think 1337) to a reasonable level (if it needs a cipher to be decoded, the inappropriate word probably will not be noticed by many people anyways)
3) Run the program with all the words generated in the metadata to create a super list of 'censored words' — I recommend a fast processor for this for longer inappropriate words (really any words that have a lot of entropy)
4) Replace any word found with *asterisks* **** (or replace with funny word, like supercalifragilisticexpialidocious).

However, the greater the accuracy desired, the more effort has to be made in steps 1 and 2. That said, I bet there are many non-copyrighted files/program for each individual step out there.