That's a great list, but I should be titled, "You might be a Russian milsurp collector if...". The list for Japanese milsurp collectors would be similar, but certainly not the same. For example:
You might be a Japanese milsurp collector if:
Every time you see a pawn shop with three balls hanging outside, your first thought is Kokura Arsenal.
You drive a Mazda because your Series 30 Type 99 was built in the same factory.