I didn't have in mind cargo piracy but the fact that it's barely worth it to log as Molly, even with the bounty. Most traders will silent dock anyway so reducing the attractiveness of hauling as opposed to piracy might incline a few more people to try pirating / escorting.
If it were up to me I'd also try a rule that pirates have to engage escorts first, unless the escorts have a numerical advantage over them. E.g.
1 pirate 1 escort 1 trader -> pirate has to shoot escort first
1 pirate 2 escorts 1 trader -> pirate can engage transport at will
2 pirates 1 escort 1 trader -> pirates have to deal with the escort first, but the second pirate can keep the transport from escaping
In my honest opinion, the current Disco escort gameplay mechanic of scouting ahead just leads to boring gameplay and people trying to avoid each other as much as they can.