Ah, I remember the terrible coworker who shared this in work-chat within a week or so of being hired. Somehow he stuck around for a couple of years despite continued terribleness (of both the "HR-related" and the "actually-doing-his-job-badly" flavours), then went to Facebook. Good riddance.
The funny part is everyone I've ever known to be into sex, porn, kink, etc has been not the one doing the sexual harassment in an organization but rather the ones calling out bad behavior.
That tracks here. From later conversations with him, he was not actually a hentai enthusiast nor particularly kinky, but was just sharing it "for teh lulz" - whereas I later ran into another coworker that had expressed concern about his behaviour at a kink club.
(There's so shame attached to being unkinky - nothing wrong with being vanilla! Just presenting this as further evidence supporting your position that enthusiasm for kink is generally positively correlated with responsibility and awareness of how your behaviour affects others)