I don't know what you mean, you need to be a bit more spesific about what sort of things you can't say.
no there are certin things you cant say
anything u want them to
u can say anything except for bad words if u say bad words u will get banned
first you cant get deported by police but if you get arrested don't sign anything or say anything just say you want a lawyer and fight for your rights
anything u want to say
anything u want to say
well you can but you cant but you can and cant if you can you also cant but i know you can and cant but if you want to you can overall i say you can and cant
if you are over 18, they cant do anything about it.
you cant do anything men, admit it your in love with her
Yes.
well you can't exactly say anything you want but you can use letters and numbers if you want to swear or stuff but you might get suspended
Well, we can say anything we want to really, but there are words we prefer over others. Such as some Americans say "also", whereas we would usually say "as well" There are other examples, but I can't be arsed to mention them ;)