Talk:Tips and Tricks/@comment-24.64.232.194-20150701013041/@comment-25876622-20150807214652

What Octometaknight said. This rule is in place to ensure fairness: Using (invisible) communication outside the game to acquire information or influence other players give you a distinct advantage over everyone who only uses ToS ingame chat and (visible) whispering.

Using e.g. Skype is not an issue if you don't share any mis/information about the current game. (This also means no "I was roleblocked", no "I found the Jailor", no "I was healed".) I sincerely doubt there are many groups of friends who manage to not give away anything about a current game while playing it...