The best poets speak from an authentic experience or perspective. Don’t try to speak on something that you know nothing about or can’t really relate to. It will come across as being unauthentic at best and pretentious and self-serving at worst. Poetry is something you feel. It is organic to your soul and before you can have an impact on others it must be true to you first….Respect your audience. Part of the reason why I don’t frequent many poetry venues is because I can only take but so many gratuitous uses of profanity, odes to past boyfriends/girlfriends or obscenities under the guise of “art”. I am not totally anti-profanity in a poem (though it is a rule I have for myself not to use it) but most poets use profanity for shock value or due to a lack of creativity.