I don't even know there are people using this kind of method and just also recently knew that this exist. Isn't it boring just to wait all day for a faucet? I was also curious about this professional farmers. Honestly when i was also starting in bitcoins i was 1st introduced into faucets which it took about 5 months of doing it.
For me i found it actually boring, and to think that there are pro farmers that existed it makes me excited to know more about them.
Spending too much time for pennies is just not worth it but i am sure that there are faucet abusers who literally create a bot to take advantage of the rules by claiming through different IP's and it is a big failure and a loss to the site as it wont generate any revenue and so is the reason many faucets closed their doors,may be they are targeting gambling sites and those IPs and accounts must be banned.