That's a perfect description of Wordsmith, in this thread, at least.
It's not his opinions, it's his reaction to the opinions of others. I will say that I haven't noticed him doing this frequently, but that could be because I haven't been paying attention. In any case, there was no need to respond to
Martha the way he did in this thread. On the surface, it was just a statement about a name that wasn't the subject of this OP, but underneath the surface it was intended as a simple dismissal of her opinion.