While I will not change Karkat's font (or his angry capslock unless he is talking in an audio/video entry) I will offer the option to opt-out from receiving comments from him.
Homestuck characters are not very popular with people for various reasons. I'm perfectly okay with that. Karkat is rude and I understand sometimes people don't want to deal with someone berating their characters or possibly don't want to deal with a barrage of Homestuck characters commenting to them. I respect this.
If you don't want to have to deal with him outside of seeing him comment at other people, comment in this entry and let me know.
Roleplay is a happy play-time atmosphere for most people, so let me know if it bothers you and I'll stop. I can't reiterate this enough. I PROMISE I WILL UNDERSTAND. All comments are screened.