It's probably more accurate to describe Digi as articulate rather than intelligent. Those terms are not mutually exclusive; you can be good at piecing together your thoughts and putting them into words and still think, believe, and do the dumbest shit imaginable.
I mean.. I can certainly see why people might believe Conrad to merely be charismatic rather than intelligent..
my personal opinion is that Digi is in fact above-average in intelligence (and I strongly dislike this man at this point.. for me to even begin to list off the reasoning behind my disdain for him would be a novel in itself). But there have been many essay-type longform videos Digi has created which provide ample evidence of him having moderate intellect. It takes more than simple charisma to create a prosperous and successful Youtube channel off of long-form video essays on anime, considering the niche topic he covered (
especially considering that anime at the time of Digi's peak in growth/peak in quality of content was still much less popular in the west).
There are many Youtubers/Twitch streamers who find enormous success through their natural charisma and charming presence. Charisma is defined as "compelling attractiveness or charm that can inspire devotion in others". While I do believe Digi has (or maybe
had) some perceivable innate charisma, personally, I always enjoyed his content (before he began his downward spiral, anyway,) because his work was oftentimes thought-provoking and well-researched, but
mostly because I found it to be intellectually stimulating. Logan Paul, Pokimane, David Dobrik, Shane Dawson - these are decent examples of content creators who found abundant success due to their charming nature and natural charisma. Digi's viewer-base was mainly comprised of (certainly not all but in majority) individuals who enjoyed anime yet
also enjoyed his content as he spoke on a niche topic in an intellectually stimulating manner. It was always, and continues to be, extraordinarily difficult to find content creators who create longform video essays on anime, wherein Digi would pick apart series, critiquing their lacking aesthetic, poor storytelling, shallow character development, and flimsy foundations/ideologies/symbolisms/etcetera, etcetera. When Digi enjoyed a series he provided commentary on all the aspects I listed but in a positive manner, providing an intriguing and sometimes profound argument for those series he held within high regard.
I think it is much easier to look back on Digi now and think of him as little more than a moronic, stagnant, lackluster, entitled, egotistical, lazy creep - and describing him as all of this is putting it mildly these days - but those such as myself who were viewers during Digi's prime remember, with fondly depressive melancholy, a time wherein he actually was capable of pumping out numerous well thought out, well structured, intellectually invigorating content on a monthly basis. Sadly, its been some time since that side of him died off. There's only so many times you can see a guy who's work you once admired posting pictures of his shriveled fem-dick in his mother's short-shorts before all prior enjoyment of his past work is washed away from your memory. Digibro post-mortem is indescribably tragic, man.
That's just my long-winded opinion, though. As I said before, I
completely understand where others are coming from in feeling that Digi merely got by on eloquence/charisma alone.