Well if you think about it, the more popular you are, the more spam you have to deal with, especially if they get a hold of your main email address. I don't know what it's like to have as large of an audience that Maddox has (or had?), but even as the CTO of a small startup, I have to deal with a decent amount of spam that makes it to my inbox despite Gmail filters. Sometimes mixed in among those emails is an important one, unfortunately.
Though yeah, in this case I probably would have just filtered this particular list haha