I doubt that's the reason. Back in UNI, a lot of people were farming FBC, and we only had one public IP, so it was like dozens accounts playing all day long. And no one got banned, no one got a a warning, we all withdrew massive amounts of BTC. So yeah, i don't know if i buy the "sister" story. I'm more incline to think it was some sort of referral scheme he was doing
At that time when it was, my sister was also my referral, but we had different devices and the scheme simply did not allow collecting from one subnet. But how it works now is not clear. Or FBC will issue a warning and will not allow collecting on the faucet or ban. I am also interested if my referral uses VPN, and I may not know about it or know what then? It is also interesting that earlier FBC allowed collecting their faucet with a proxy, and at the same time restrictions were imposed on the account on the use of points and some other things, how does it all work now?