In this case it’s something expressed by a developing brain over instant messages. The way it comes across to me is as posturing by a very insecure person.
Something I’ve learned by observing judgments people around me make about others is that I’d rarely deserve or want to be judged the same way, and that the people making judgments would typically feel the same. If I were Mark being judged by messages sent online as a teenager/young adult, I don’t think I’d feel like it was rational or kind, and more opportunistic rather than necessary, productive, or helpful at all.
Having said that, evaluating him by more recent information doesn’t make me feel great about him by any means. I’m not defending him. I just don’t believe the messages are very useful information anymore - even if at the time they were perhaps an indicator of what’s to come. It’s probably more useful to look to current events to understand who he is in the present.
I see these messages passed around and referenced often and frankly it has begun to appear like a crutch for trashing the guy. Given his position in society and the amount of information available, we should all be able to collect and reference more recent and relevant information.