This is tantamount to an endorsement of Lumiaman's behaviour here, and as you are a representative of Nokia I don't think it is appropriate, and certainly doesn't make Nokia look good. He is trolling pure and simple, you can't miss him referring to those that disagree with him as "taliban", and that is surely a clear enough sign of it. Quite frankly when someone is deliberately trolling, they are often just doing it for kicks, so can you really tell that he is passionate about Lumia products and not just trying to get a reaction (and succeeding), surely as someone who presumably cares about Nokia (since you still work for them) you want people who will represent your company well and not piss people off.