[@Overlord24] 
......To my knowledge they know nothing about the other signs besides themselves, so it wont be obvious what so ever for a sign doesn't dictates anything about the person, and their powers could be entirely different from what one would of originally guessed (only zodiac, and certain villains know that information to begin with).. and the emotional thing is one way it's not both ways so there would be no real link between them, not to mention they don't really have anything in common, and even then being linked in emotions does not mean Omniscience... to me that's just finding a reason for meta gaming.

[@KatherinWinter]