He has 800 posts and plenty of reports. I'm sure he knows what spam is. He's also too invested into the site to cause any forum-related harm. His different time zone makes him a great asset for stopping spam.
I will consult with others on issues such as guru promotions or promoting a user with 3 posts to a position of power, but in this case, I really don't think it was necessary.
To Arseen and other admins: Make sure to go to your profile -> look and layout -> quick-moderation on message index. Checkboxes seem the most helpful. Then when you see spam, open a new tab for the topic creator. Once you have their profile open, delete their topics using the checkboxes. Then ban them.