http://www.wikidot.com/legal:terms-of-service
^ read that, and pay particular attention to the section called "Prohibited content and usage".
If you do not abide by those rules, you risk getting the ENTIRE wiki site - not just your own account - BANNED or DELETED.
Do the other users want all their hard work deleted because you wanted to post PokéMon porn? No, most of them most certainly don't. So if a law-breaking (yes, law - as in the things that countries have that stop you doing fun things) post or thread is created, it will be deleted and you will recieve a ban proportional to what you posted.
As a rule, if you know you will anger someone by posting something, just don't do it and you will help to promote a drama-free society. ^^