What to do with the rm -rf hoax question

I'm surprised that several people think deleting or even suspending the account is too harsh.

I'm not familiar enough with the nuances of StackOverflow - maybe it would delete other helpful questions and comments he's left in the past if they deleted it, but an indefinite suspension seems very necessary.

How is making a fake post solely for the purpose of advertising your company not against the rules? Even if it's not the letter of the law, how can they afford to tolerate that behavior? The quality of StackOverflow would be severely compromised if this becomes a trend. The internet is full of enough content disguised as original content, SO needs to show that they won't let that happen on their turf.