People will read both your profile AND message when deciding if they should write back to you. If your profile is really lame it won't matter how good your message is.
If you want to be successful on POF, try this:
1. Talk about your hobbies.
2. Talk about your goals and aspirations
3. Talk about yourself and what makes you unique.
4. Describe your taste in music.
Conversation Starters (i.e. what you'd like to do on a first date...)
I like to hang out somewhere, go for a walk and chat, maybe an art gallery or go to a show.