I've seen Jack mentioned a couple times in the MovieBob thread, but people have mostly been pointing out that Jack's been doing pretty well on the Escapist so far. Not a big draw like Yahtzee, but already doing better than Bobby's anemic numbers. There have been attempts at a podcast with both of them and some other guy, and someone reported how lackluster Bob is in a podcast format, while Jack more or less holds his own. Makes sense when Jack has had considerably more experience with long-form discussions with other people, while all of Bob's content is heavily edited and scripted. I know opinions about Jack's contributions to RLM are mixed, but I'm happy for him that he realized he had a drinking problem and worked to sober up.
In this day and age when pretty much every internet personality ends up having massive skeletons in their closet (as seen in the recent Rooster Teeth sex pervert scandal), it's pretty remarkable that RLM continues to be almost entirely drama-free over a decade later. A lot of people could take a page from RLM's book about work/life separation. I remember growing up how we were constantly warned against sharing too many details about our personal lives online, but after years of social media, it seems that most everyone has been conditioned to share everything, which inevitably gets them into trouble. The internet never forgets, after all.