There's no might about it. Players will join a religion if huge penalties are imposed for not being in one. They just won't care about the religion one bit(already a large problem for religions as is). Not worth it just because of that.
Something could be done about religions with a horible context.
Yet we shouldnt care so much of the noble followers really understanding there faith, also in reality there was just a basic belief, most noble followers wouldnt care so much about enlighting them selves or the religious authority.
Many times they competed against the church to gain more land and influence.
Some nobles where famous for there zeal, but many wherent at all busy with that.
