A freelance marketplace is always full of cheap and mindless people who are not able to deliver anything. They place random bids and produce crap.

Unfortunately most of clients don't realize that it's not possible to get a quality work for $20 per hour or even less. They get frustrated and disappointed in a whole idea of hiring a freelancer.

P.S. If you need a reliable person for your Python or Javascript work – just drop me a line ;-) http://careers.stackoverflow.com/msamoylov