Quote from def:
If you are going to make a blanket statement, you should put it into context. Our policies serve the active and well capitalized trader well....
if you are going to mention interest you should also mention that IB pays interest much higher than most brokers for amounts > 10K, pays interest on short stock when most brokers don't, and has a margin debit rate that is amongst the lowest in the business.
The "mandatory activity" you describe above is only $10 per month. For the vast majority of our clients this fee is waived as they generate more than $10 in fees per month. For FX you should also look at the hidden cost of wider spreads which you may be paying at other brokers. As our spreads are tighter than most FX brokers if we save you 1 pip on a 100K trade you're already ahead of the game.
If you are not an active trader, you might be best served by another broker. However, for those that actively trade we offer exceptional value.