After working +1200 hours in oDesk 13 years ago
I'm ashamed to admit this.
I worked for someone on RentACoder back in the day. I got paid to develop software that is now used by over 20 million people. My cut for a week of work? $200.
Never again... (and years later I'm still periodically asked by the owner of the company if I'm interested in new projects for the same pay rate)