Without seeing the actual messages you posted, is hard to know the exact reason you got banned for. But, what I can say is, we still don't know, in more detail, what they exactly gonna change about each tank. So, imo, calling it a nerf this early is questionable. Some tanks will get nerfed, while others will be buffed. And, as for calling it wot2, I have seen some people getting the ban hammer lately for saying similar things. From the few times SS said something about it, everyone is tired of people calling the game WoT2.0, so they just ban or mute, even if somewhat unfair(within reason, of course). But, like I said, there are already players crying about the changed and the devs still have not released the exact stats.