Was this confirmed by Tumblr staff?

And if the accounts were empty then what's the harm?

> ...was just meant to smear them as a sex-pervert.

The user voluntarily made several accounts with extremely vulgar and sexual names, ostensibly for NSFW purposes. If merely sharing the names is enough to "smear them as a sex pervert", I don't think that's Matt's fault.

Especially considering the post was in response to the user inciting harassment against Tumblr staff.