Skype isn't exactly better than the forums. Skype is better for quick and short messages and generally has a lot more relaxed feel to it for most people. The forums is a place for longer messages with more context and meaning to them. The point of posting in a forum is to have discussions with a lot more depth to them then you would get on an instant message platform. When you start typing long messages like I'm doing right now in a thread that doesn't move fast it makes more since why the forum can be better than skype. If I had typed this on skype before you could even read the start of my message about 10 short pointless messages would have popped up and moved my message out of sight.

Skype is great for a cluster of people just having fun and screaming at eachother, but for important conversation the Forums are the best.

Also the thing that draws people to the clan is seeing us talk and the type of environment that our clan encompasses. If we only talked in skype then no one would see our conversations, we would get no invaders, and no new members would join the clan. The forum is here for a reason and you must always maintain forum activity to keep the clan alive.