Apartment hunting has shown me that so many kids my age and younger openly broadcast that they are running away from abusive homes and that they are LGBT. I sympathize completely, but you do not under any circumstances need to be on a roommate finder website telling strangers on the internet that you are part of a vulnerable minority with no one back home who cares what happens to you... just say you are moving out, end of. Once you get to trust someone you live with then you can share the backstory. Internet safety is something that still matters.