Please

[Moberg]

As Mao mentioned, the expensive POB itself can be easily circumvented via cloaks. Uncloak near the base, activate its shield and the miners will be unable to dock for a sufficient amount of time. The only issue in mining fields are weapon platforms by POBs because unless you're in a group, you can't keep an eye on the traders slipping away and keeping the turrets on each platform shot off (especially after the trader shoots the platforms to explode it and make a new one with a new set of turrets spawn).
Pirating outside of mining fields is also a viable alternative if you're solo or even better: In a group.