The script still can do that too and fake the IP.
based on their Blockland ID and IP.
IP matches the ID
The script can do the same thing by first checking the master server for IP and name and then checking an ID list to get the ID from that name. Finally you send authentication to RTB Connect API by sending both the acquired ID and the IP that belongs to it.
Grrr
And if the HTTP request is manually sent it could be setup to the requested IP. Although, a normal person wouldn't make something like this due of how long time it could take doing it. I rest my case.