Is there a maximum amount that's considered reasonable to pirate a trader for? If so, is it a set limit or a percentage?
I've heard of pirate transports pirating 5k ore haulers and demanding to be filled up - that's over half (2800).
I know there are no hard and fast rules, but I also know there's a point at which the "ruining other player's game" rule comes into play and the Admins step in.