I think perhaps my previous answer would stand on this, that the B.C. system deals with users who use it for a commercial purpose, not merely frequent users.
We would support a restriction on somebody where it is the equivalent of a court application to strike something for being frivolous and vexatious or for an abuse of process. These do exist. Court cases are occasionally struck out because somebody is abusing the system. There's no reason why the FOI system would be any different, but it would be a very limited and rare case where it is. And it may well be that these.... I'm not familiar with the three cases.