I remember watching some of his older lectures on comparative mythology and psychology, especially Jungian stuff, and quite liking them, but this was before the whole 'let's throw a wobbly about trans pronouns'/"cultural marxism" thing and adoption by the alt-right, which has subsequently put me off him; I think he's enjoying the present limelight a bit too much, perhaps.
I don't quite agree with the moron part but I do think getting involved in full-on internet debates about complex IRL issues can be counter-productive and that this is something Peterson's very much fallen prey to. I remember there used to an old 4chan meme that said "arguing on the internet is like running in the Special Olympics: even if you win, you're still retarded", and whilst that's obviously an extraordinarily cruel way of wording it, I do basically agree with the sentiment; arguing online is an extraordinary waste of time, imo.
I feel like the polarized-left/polarized-right debates that seem to be very big on US campuses at the moment are kind of like online debates that have spilled out into the 'real world', but in some ways still have that endless, petty, circular logic that characterises online debates, and I think this has become Peterson's main thing at the moment. Personally I wouldn't be thrilled if I found myself gathering a substantial coterie of alt-right fuckeroos as followers, and I'd start to wonder what, exactly, about my work, was attracting such people. Even if Peterson himself isn't exactly 'alt-right' (idk what his political persuasions are) I do feel like you have to take some responsibility for how people are interpreting the things you say, and this is something he's not necessarily done.
Agree that the C4 interview demonstrated very poor journalism/interviewing skills.
Edit: just realised I spent like 10 minutes writing a post about how online debates are retarded in order to post it in an online debate