It really depends, however, on what kind of homework it is and how good you are at it. If it's just monotonous verb conjugation for Spanish or solving easy definite integrals for math, then it's OK because you aren't trying to learn anything new or grasp new concepts. You essentially have rs homework--point and click 50 times until you're finished. On the other hand, if you need to learn how to do something you don't understand, then, yes, time needs to be taken in a runescape-free environment so that learning may happen.