That would be only invoked for sales based threads. Where you do not want lower ranks to bid. Or similar situations.

There can be no reason for a moderator ever to remove facts based on topic or relevant discussion. It would be entirely ludicrous especially on a board such as meta.

The optimal result/outcome requires all fact based evidence available be presented for further analysis. You can not start prevent that under any circumstances on a board like meta. I actually believe all facts based opinions should be allowed on ALL posts and that any opinions or statements or accusations that can not be backed with evidence or highly corroborative events should be deleted.