In short, the decision implies that any form of the sequence of the characters “b”, “a”, “n”, “k” are illegal in domain names in Sweden. Further that checks of what domain names are registered are to be checked before registration.
This is, as people know (except PTS obviously), is not how domain name registration works. Instead, one is strengthening the dispute resolution process so that it is more well known what will happen if some infringement is happening. Next step is of course to have more terms than “bank” be added to this black list. Like registered trademarks in the world, and other terms. For example everything in Wikipedia!
I hope .SE is refusing to follow this rule.