Lets wait and see what Igiss and the Admins decide about the rights of system owners. As it stands, it appears that you're allowed to do anything to anyone in your system, it's just that you can't prevent properly tagged/ID'd characters from going there to buy ships/equipment which isn't available elsewhere. The way I see it, you're still allowed to threaten them, and even resort to force, if they loiter around and are a pain in the arse. They can come in and buy the stuff, but don't get to hang around unless you say so.
Edit:
' Wrote:Wait...Groups cannot apply for special RP? You have to be an official faction to apply for special rp in a group?
The way I understand it, unless your faction is official you can't apply for special RP as a group, you have to do it separately for each individual character. I could be wrong.