Some dice casinos offer way bigger free bitcoins from their faucets like dadice for example at max level i believe its 20k each claim, of course you can only claim when you have 0 bitcoins and limited from the same ip, maybe someone already is exploiting this, using a bot changing ip and claiming over and over again, he could make tons of bitcoins in no time, right??
For a while on here, there was a guy with a bot that switched through multiple proxies and used deathbycaptcha to manipulate the faucets. It lasted about a week until the sites caught on and changed their routines to foil the bot.