A few years back before maybe the 2017 FOMO rally there were many people that actually did do faucet farming, however they didn't need cellphones for that they just needed a desktop.

I remember PrimeDice a few years back had a large faucet, it was like 2000 Sats and if you wagered alot of BTC then you moved up a few levels and maybe got a 3000 or 4000 Sat faucet. There was a small time-delay and captcha but it was pretty easy to turn that 2000 Sats into the min withdraw.

Obviously people started to abuse this method in 2017 and they had to lower the faucets and eventually remove it since it became too much work to keep having to deny withdraws from people who never made a single deposit.