It always said, "Possible mental illness but not always." The only edit I made was the reference to downvoting. Apparently the words "possible" and "not always" don't mean what I think they mean.

I also obviously never said you said it verbatim

Oh really? Is that what you said? Because your post says this:

vocally arguing that while there are exceptions to the rule, mental illness is the likeliest explanation

Unless "vocally" is supposed to be a synonym for "implying" then I have no idea what else I'm supposed to interpret this as. Additionally, in this post you wrote:

essentially are responses to people calling you out on the same thing I'm calling you out on where you state that it isn't always mental illness but always re-emphasise in conclusion that mental illness is a strong possibility (or vaguely allude to it)

Where did I say "strong possibility?" I did say "definite possibility" which does not mean the same thing as "strong possibility." How can I vaguely allude to something I never said? I was probably overly defensive but idgaf.

but the list in it predominantly features mental illness and mental health issues

Um, it really doesn't. Empathy and social skills are part of psychological development. Boredom definitely is not. Low self-esteem can be but not always. Lack of appropriate mechanisms is more likely than the others but, again, is not an absolute. The list could've been more detailed but I didn't know a bunch of people were going to jump down my throat and make a bunch of assumptions without asking me clarifying questions. Had I known that I wouldn't of bothered commenting in the first place.

Really tired of being treated like this by posters here who cannot be bothered to respond to my posts but demand I continually rewrite and expand mine.

Really tired of people not asking clarifying questions and then getting angry at me for editing/expanding on what I meant or asking further clarifying questions. It's almost like this subreddit is a terrible place for discussion.