You realise he's the President and has more important things to do with his time? Taking 30 minutes to answer questions on Reddit is probably an important chunk of his day. Answering 10 questions with mostly paragraph long answers in that time is good.
"it's questionable if he was involved with this AMA at all"
In the opening of the AMA he said it was him and posted a photo as proof (fair enough it could have been a lie but I don't see why they would do that).
"standard set pieces from his campaign that you could have just as easily read off his website"
What else would you expect? He's running for a second term. Just look at how much these people get berated when they make a simple slip of the tongue during a speech or side comment to a camera. Most of what he says has to be run through speech writers and staff to make sure he doesn't contradict policy or accidentally reveal non-public information.
"it's questionable if he was involved with this AMA at all"
In the opening of the AMA he said it was him and posted a photo as proof (fair enough it could have been a lie but I don't see why they would do that).
"standard set pieces from his campaign that you could have just as easily read off his website"
What else would you expect? He's running for a second term. Just look at how much these people get berated when they make a simple slip of the tongue during a speech or side comment to a camera. Most of what he says has to be run through speech writers and staff to make sure he doesn't contradict policy or accidentally reveal non-public information.