Do not understand me wrong, reward is very nice for these days  - but you will see after some time can you pay such rewards in relation to your income. I bet you will not pay all time from your pocket. Anti-bot links are not some extra prevention against bots, but they still can slightly complicate life for them. It is important to block all VPN, proxy and Tor for start.

I do not know is that address belongs to bot, do you see it is claim more then once per hour or it have many ref payments? You should explore all anti-fraud options of FaucetHub, and use all available methods to protect your faucet.