Regular capitalization rules also apply to section headings. That means words in section headings must only be capitalized if a.) it is the first word in the section (of course) or b.) it is a proper noun.
I just wanted to tell you that you are a jerk, and a terrible mod. Since I joined since wiki, you have been the main problem to me. You banned me once for defending myself and for the first time for joking around, and many others! You expect me to be okay with being accused for no reason? You're the one who's making this unfair for me. You even cursed at me at another wiki! I don't get what you meant by 'causing drama from the past week.' I didn't cause drama. I know you're gonna report this to a admin and get me blocked. I don't care. I'm quitting because of you.