Well, I could understand a cap of TOTAL comms. E.G. you can only have 500 Classics at a time. This would promote spending, which would promote more play time to keep your totals up. But to limit how much I can earn in a week, to a value WAY LESS that what can be earned in a 2-3 days tops is confusing. Like they don't want us to spend to much time enjoying a certain character/class.
This makes sense to me.
I too have a healer that I played with for a day before I had reached the cap and since then I haven't played at all on her.