To be honestly both programms have cons and pros. Skype has better voice, but have no community organisation instruments (logically for programm supposed for voice communication, isnt?)
Discord have all what you need to organise much of spamming peoples in something readable and manageable. Voice is crap. Eat resources. (You would notice it well on laptops)
Skype have his pros when you use bad connection and laptop. That why i still use it for long voice RP, when it suitable lay on bed with laptop and tell the story. Discord will show you much of bad sides regarding voice in that case.
But use Skype for driving community? That torture. (especially for international, with very different timezones. In skype you will feel pain trying find something what you need in that text channel). Think it suitable only for small groups with not different consist of members.
