No, I didn't dismiss a comment. For the first time, I've had a comment I wrote dismissed by an OP on groupthink (at least that I've noticed.)
To be honest, it's kind of a slap in the face. As a regular commenter, I've never expected my fairly polite, perhaps a little disagreeable opinion to be dismissed out right, with no response. I rarely comment on the main page anymore because I feel like no one will see it, but, here, I like that we have a smaller community with many names that I am familiar with and who take the time to interact with each other and even bring comments out of the gray.
I won't go into an "abuse of power" rant or complain about kinja because I really do see the benefits of this power. I just need to pout a little that it happened to me.