Well, they expected the events would be an all day event and that Jagex would always be in game banning with them, no. They should've known it was a temporary fix for Jagex, they are not going to every world and going to collect all the names, they will go bankrupt.
They got like 30k names from it, probably most are banned if that counter is not faked.
And regarding PB, don't you think Jagex, whom pays their devs hundreds of thousands of pounds each year, will expect their devs to add those PB scripts or algorithms to the flag system? If I was jagex I'd have 4 people on PB all day.