I agree with Jinx, everything's fine as it is right now. "Lolcaps" are being blown up by official factions. And expierenced players don't visit Liberty on their Outcasts. Actually Outcasts aren't really that numerous in Liberty.
I definately don't see problem with Outcast fighters lurking around Liberty. IRP they protect their cardi-business (so, representatives of large cardamine cartels and syndicates, and escorts for direct cardamine shipments) or they're simply local addicts (there's outcast with Libertonian name on Buffalo; they won't join Lane Hackers because their goals differ - Lane Hackers are organised criminals unlike those 'little' addicts).