Not sure if it's being exaggerated for comedic purposes but it is interesting to me how alien the act of sending a letter by post is to the author. Granted I don't send them very often but I wouldn't think much of it if I had to. But I guess younger people and particularly those in tech may genuinely never need a reason to send a letter (or, it seems, write an address by hand).
It was pretty recognizable as trolling--the very good and clever "old school Internet" style of trolling where it sounds plausible and sincere, but then you get done reading it and say, "Oh lawd, he got me! Good one!" The kind of writing that people used to spend a lot of time perfecting on Slashdot. I refuse to believe there are adults out there where things like using a pen to write and mailing a letter are alien concepts that need to be learned. It was very earnestly written though, bravo!