I find his lack of explanation and unwillingness to clarify refreshing.
“Thank you … for watching me consume.”
Truly, a sage for our times.
for the tl;dr:
He did it because it seemed like the thing to do at the time. Now it’s done. He likes that people got some joy out of it. He likes Philly. He has no plans to do it or anything similar again.
Again, truly the hero we need, if not the one we deserve.
(and hey! it’s my cake day, as they say on the reddits)