And how do you comment the words below?
How to get free YouTube subscribers!
Step One: either register a new account on BitcoinTalk, or use a low-level account in your possession.
Step Two: create a thread offering a good-sized bounty for subscribing to a channel.
Step Three: Thousands upon thousands of members will come flocking and subscribe, without any proof that they'll get paid in the first place!
But seriously, would it kill any of you to wait for some sort of proof that the OP will pay in the first place? If he's willing to send 0.001BTC to 500 users to subscribe (which is, by the way, 0.5BTC or $630+ at current Preev rates, something that no sane person would promise to pay for a measly 500 subscribers), he should also have no problem getting an escrow to hold funds.