Or at the very least, make it like a prison sentence, and give him X years on the list.
After his behavior and repeated problems/time on the list, removing him now would be a real joke.
I think that's a good idea, perhaps Arch could be persuaded to give Connor a Custom title, stating that he is on probation from buying and selling for x amount of time (like till he's 18).
I don't believe at burning people at the stake, but I do believe in teenagers learning about consequences and not getting a free pass.
I asked Arch for this around a year ago, albeit for all probation list members. I seem to recall his response as being willing to look into it further, but it didn't go anywhere