What? People taking gold to shove into family accounts so they can use it on other continents instead of a realm at war that needs every coin for the war effort?
Again, if they take your gold away, then you are justified in making them your enemies. Once you stopped giving them your gold, however, why do you care?
Or wanting to purge those wastes of space?
Space is not a finite ressource in BM, and intentionally so.
Because I'd rather see an estate empty and the gold going to a lord that will use it (either directly or by issuing it to other nobles) than someone who sits there and does nothing for the good of the realm. Not even RP? Please. (...)
Why should he please his lord when just sitting there gets him his gold. And he can keep retaking the estate too. Or just wait until right before taxes to do so. Lords cannot prohibit people from taking estates back.
Sure. If that happens. We are specifically talking about inactive people. People who are actively working against you or someone else in your realm? Go ahead and ban 'em.
You're under the impression that moochers are always smart. They are not. On the contrary, when Westmoor was warring the Saxons in Fontan, we fed the moochers we had with false info... Which Fontan attempted to use. But yes, eventually we got tired of having to be too careful of what we said. They were banished after continually refusing to follow orders to recruit units or march towards the front. I've seen people banished from other realms for less and far more quickly. But we're a tolerant lot that gets tired of our tolerance being abused. 
So you thought these people were spies, you fed them false information, you saw your enemies use that information,
but then you banned them because they refused to recruit a unit? Why on earth did you not banish them for, you know,
being spies?
