Courier Contracts can be the lifeblood of trade and industry for market players and industrialist. CCP did good in introducing the package delivery mechanic to a station you can’t dock with, but then turned around an undid all that good by letting scammers bypass it by onlining the station. Now, I know a big part of Eve is how can you screw over someone else, and if you set up a gank between pick up and delivery and blow me up on route, well done. But at least that required someone to undock and ship and start shooting. These station lockout scams are just people sitting there afk until they get a contract notification. Hell, there’s even a 3rd party app that does that monitoring for you. That’s not encouraging better play. It’s abusing the game mechanic. And unlike your Jita isk doublers and item sale scammers, this is actually suppressing a needed aspect of the Eve economy. Haulers are less likely to take player owned structure contracts, that suppresses the flow of goods and materials across New Eden, and it further biases things towards entrenched players and corps. New players can’t break into markets, because they’re unknowns and there’s too much risk hauling to their POS.
How is sitting AFK until you get a notification to lockout your station any better than AFK ratting? But unlike AFK ratting, there are easy solutions here. Leave a station able to accept deliveries for 12 hours after the core is removed, (spin it as residual power or a cooldown period, whatever) or, CCP really wants to leave this sort of scam viable, just mitigate it somewhat by allowing courier to return the contact to the pickup station for a partial collateral refund.
I know scamming is a part of Eve, but this sort of scam, with no counterplay, almost no effort on the part of the scammer, and a negative effect on multiple other aspects of the Eve economy is not good for anyone.