Then they’re not permanent bans. Otherwise, outside of forums like Customer Support and Technical Support people cannot post without an active subscription.
Permanent Bans are just that… permanent. Any successful appeals to Blizzard notwithstanding.
And someone in the CS forum said they don’t have a subscription and can’t post here in GD.
So one of them is lying… So whom to believe? Well, I am just going to go along with what the Sacred Yak says: