it's just a bad joke, nobody uses either for this

I'd say, Hz is quite regular choice for _this_ ... it's just not referred to as "Hertz" by IT practitioners (usually). Technically Bq and Hz are same unit 1/sec - difference is that Bq is used for random physical events (comparable to web requests) and Hz is used for periodic physical events.

I use hz to measure my adult fun time. In addition the metric sub unit prefixes, I can make it sound very high to the untrained eye.