I personally think it's quite reasonable to not directly reference the typing quirks in spoken conversation. Like yes, they're iconic, but they're also something that only works when you read text. It's pretty incompatible with spoken dialogue like an animatic series needs.

If I HAD to choose something though (assuming the show even makes it past the pilot in the first place), I'd suggest having the trolls using voice changers to subtly disguise their voices. Still gets across the whole "mysterious hacker stranger" aspect. Of course it'd probably have to be subtle so as to make the dialogue still intelligible, so YMMV on whether that would be worth it.