Point1: OK, then this trader is an independent contractor, changing ID's and eating into his/her profit margin because selling ID's at 1/4 the cost of the new one, on top of getting the appropriate rep to BUY the new ID necessary. Plus, you said yourself he's BMM tagged, mentioning nothing about changing the tag, just the ID...apologies for misunderstanding the facts presented.
Another option for this trader is the FreelancerID, but limits said trader to 3600 (?) cargo. This brings back the point made earlier that it doesn't solve anything, just makes the trader seen more often by authorities...which leads to more chances for encounters, which leads to more opportunity for RP or the learning of RP.
Point2: Then that trader gets put on a "Most Wanted" list by the military and police of that system, and either waits to play until that military/police leave, or finds another route. Either way, they are dealt with in the manner fitting a military/police force being ignored by a trader/driver. For instance (one of those specifics things), if you ignore the laws of your given municipality, pretty soon the officials of said municipality will have you on their radar and will treat you more harshly...same thing here.
Point3: Not so. By what you're proposing, or seem to because of ambiguity, this little LWB bugger would blow up my transport just because I'm an "enemy" of him, probably appearing red in his HUD. Of course there will still be the "2mordai" encounters, that's just an unrealistic expectation because people are involved. And not everyone will treat the rules, and the server, the same. It happens, and it's NOT something you can change by adjusting the rules in any way, shape, or form.
You can't force someone to role-play. what you can do is put some roadblocks in his/her way and hope that through a little adversity, you can keep the fruits and expel any chaff that sees fit to try and ruin your harvest.
Point4: What details? All I see is a devil's advocate, taking the negative stance without giving any suggestions other than scrapping the entire idea. And then not giving anything constructive in return for scrapping said idea. Always taking the negative stance and shooting down other people's constructive comments, while possibly being an effective argument tactic, in the end accomplishes very little except the alienation of the nay-sayer.
I tend to read a LOT of the stuff on these forums, and have read a LOT of posts, threads, and arguments people have had over the fate of this server and more closely the imminent release of the "savior and destroyer" 4.85. Many have asked you specifically, that if you don't like what's going on here so much, why you're still here. You, like many others, are here at Discovery because it is one of the best mods, and is the most highly populated server out there for a game that's been out for much longer than it was ever intended to be.
Yes, I realize that you are trying to make disco a better server, and the tirades that follow are because of that desire to see things made better. So is everyone else, admins included, who are putting in their time to try and make things like ship-balance, trade routes, and ID system better for people. Bias may or may not play a part in decisions, but i can tell you that nothing is done unilaterally, which seems to be the crux of many of your arguments.
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edit: Point5: Didn't we stipulate that traders don't have specific ZoI, and can travel anywhere their affiliation (lawful/unlawful) takes them? within reason of course, but just because i switch from Republican to Universal doesn't mean I'm not still going to go to Rheinland. It just means that I'll have to watch more carefully where I spit my chewing gum.
Yes, if I switch from Republican to Universal, I will no longer be KoS to the Unioners, but I will still be able to be pirated by them, AND I'll have to deal with added suspicion from the RM because I'm no longer a House company, but a foreign corporate employee.