As explaint to you earlier in this thread the MiiVerse is considered a save area for children. Alot of there games are fun for adults too, but they often target kids in the first place.
Areas for kids enjoy a special 'security' treatment. The idea is that kids are still very easy to influence and therefore have to be protected to not see inappropriate content such as extrem rasicm or porn (or learn that steeling things isn't a big deal).
The MiiVerse and alot of other social networks tend to be highly censored places. Which I believe is good for kids networks, but the wrong way for adult/teenager networks such as Facebook.
If you search for completly free places you should consider e.g. places in the tor (onion rooter) network or 4chan.
If you search for ways around censoring of your goverment I recommand to visit e.g. a irc channel of the chaos computer club which is a group of political hackers (since most of them hate censorship of all kind and they're very found of IT it's a good place to start. I think in your case even a better place then e.g. most human right groups. If you can't use irc you also find e-mail adresses on there websites).
But I think this forums isn't a good place to ask the question since it isn't specilized in this things and I also think that the MiiVerse isn't the right place for things you want to share either.
Good luck and don't let you take down by the censoring. The internet should be a free place