I found MU* about 25 years ago, around the time I was 10, and fell in face first. I was better at interacting with people through that black void, and I could be people in wild situations the likes of which I would never dare actually put myself in. Social situations moreso than adventurous ones. I'll go on an adventure right now as long as I don't have to speak to a human on it.
I do believe that growing up from that point onward more interested in interacting with people through my favored translator had a serious impact on my social skills in the real world. I'm an extroverted introvert kind of monstrosity who struggles to communicate really anything at all verbally, to physically-present humans. I can recall when I was much younger having to visualize writing what I wanted to say in my brain like a pose, then just grit my teeth and read the damned thing out loud.
I didn't do as much of this as I might wish I had done, because why would I? Real, present humans are scary as fuck, and there are MU*s waiting.
I've made great strides, but it's still a gulf -- a gap -- that remains impactful. I avoid actual physically-present interactions with other people to the greatest possible extent and am generally accounted a much less pleasant, affable, and social person out in The Real. That's to this day.
So I submit, albeit anecdotally, that a preference for living in the black screen probably does have a maladaptive impact to some extent or other. Depending on how young you were when you moved in and how immersed you were, I would imagine, you would see this to a greater or lesser extent.
ETA: This felt super bleak for the tone of this thread, so I wanted to inject some optimism. I also gleaned from this hobby organisational and business writing skills that nobody in my professional climate can match, which pay my bills. All is not lost; abandon not hope, ye who enter here.