Just putting my 2 cents worth here. I new here so forgive me for any false assumptions I may have. Now on to the discussion. I assume that the nerf came because a lot of people were complaining of the pscrap trading to alpha? If so then why nerf the other sellpoints? Selling pscrap is already hard itself to other sellpoints aside from alpha and gamma.
You have:
Yokohama shipyard - Junkers cant sell there since they're banned in kusari space
Singapore shipyard - technically its impossible there since its an IMG Guard base
Sabah Shipyard - its in colonial space and who is friendly with the colonials? IMG
Aland shipyard - its was already at 3k prenerf, I don't know how much is it right now.
What I mean is if the issue or the complaint is only against selling in alpha or omega, why just not nerf those 2 sell points?