Further, the last time I read through things about trademarks, my understanding is that they don't work the way some of the people posting say it does. Trademarks are influenced by whether it is a distinguishing mark or not. You can lose trademark protection if it comes into common use. Once registered, you have to keep defending it as a distinguishing mark. So I'm not sure where the "paralegal" in that forum thread is coming up with the argument that it somehow works like a "first-to-file" -- the person who possesses the paperwork possesses the right.
Maybe my understanding is incorrect. If it isn't off though, I can see their lawyers saying, Comodo really doesn't have much of a case (but it'd still eat up a lot of time and resources a small non-profit won't have).