This really doesn't make much sense to me. There were a lot of good reasons for the SNB to drop their peg to their EUR, probably first and foremost the potentia

This really doesn't make much sense to me. There were a lot of good reasons for the SNB to drop their peg to their EUR, probably first and foremost the potential of quantitative easing being introduced for the EUR. This would have made it more and more expensive to keep up the fixed exchange rate. I also don't see any reason why this would have affected Russians more than people from any other country. So if your goal is to hurt Russia, I don't think this was a good way to do it.