Is it safe to use WordPress for anything involving BTC? There was an exchange called AllCrypt that recently got hacked due to a vulnerability in the WordPress software which resulted in the website losing users' funds and being forced to shut down.
EDIT: Found the link which describes the hack in more detail:
http://www.allcrypt.com/blog/2015/03/what-happened-and-whats-going-on/Since the OP wants a faucet that pays directly to the user's bitcoin address, I'm guessing this probably rules out scripts which use microwallet services like Coinbox.me and Bitchest.me. Instead, the OP would have to run an instance of bitcoind on a server or use Blockchain's API to process withdrawals. How would this affect the faucet's security (if at all)?
don't know about it :O
but i think if we know how to make wordpress invisible, so it'll be safe.
try search on codecanyon, there is many plugins to hide your wordpress and noone knowing you're using wordpress.
*im not use it, just a suggestion