Today I registered in the Mageia forums. I was a little self-conscious because of my limited technical knowledge and because I'm an active Mandriva user. To be honest, I was expecting a degree of rejection due to distro fanboyism.
However, my fears were unjustified: the forum welcomes everyone and I, in fact saw many of the familiar names in the Mandriva forums!
I really hope Magiea brings the two Linux communities together.