Reading through all the comments here shows the devs have pretty well thought about it, and thanks for the active respones from their side!
Something that's not very clear to met yet is how you deal with these "account resources" in combination with the "seasonal mode" that's being worked on. In my opinion it's very important that these seasonal modes are a "fair" fight which shouldn't be influenced by account resources either gathered from paying with RL money or originating from the persistent MMO mode.
The seasonal will become quite competitive I guess and being able to retrieve an advantage there would seriously ruin this mode. Would it be possible to completely block selling CPU "blocks" in this mode or at least restrict it until you reach like GCL5 or something?