Rules in this case are just like rules that could be applied to hacking, or startups: if you don't understand why it's there, you probably shouldn't break it. I

Rules in this case are just like rules that could be applied to hacking, or startups: if you don't understand why it's there, you probably shouldn't break it. If you do understand, and know why it doesn't apply to your situation, go ahead. Conveying your persona isn't just about yourself; the recipient needs to be able to recieve it. Experience has shown that there are things you can do to make that easier for them. Rules in fiction would be to do those things, and avoid the things which make it harder.