Saving $100 is pretty nice. However, the material you get for the price at UWorld is well worth the money. While you may not get caught, sharing accounts goes against their user agreement. They have pursued action before over on Reddit, so I would not personally want to risk them finding out. That's all in addition to it just not being very moral to use material without paying for it.
Additionally, since we don't like to encourage this sort of behavior, I will be closing this thread.