[bilky asko]

If he'd supported the policy, he would never have been suspended. If he'd supported the policy, why would he have posted? 

By the time you've imagined the alternative universe where it could happen, you may as well just admit that you're trying to defend the indefensible.

He didn't support the policy so you have no way of knowing that 'he would never have been suspended' if he had. You are assuming that to be the case, which is fine and I can see why you would come to that conclusion, but it doesn't make it a fact.

The problem is that your alternative situation isn't a precise opposite - you'd have had no governmental pressure, and a supporter of the policy would have to be particularly brazen to welcome a return to the language of Germany in the 1930s. 

You'd have to pretty naïve to think a suspension would have occurred in those circumstances.