It is a good thing. Our brain is programmed to absorb useless info all the time. Why do you think it is easier to watch a comedy show than a physics documentary? Why do you think it is easier to remember a bad word while verbs require constant practicing to truly learn them?
The best way to learn is by associating serious stuff with useless stuff. It is better printed on our cognitive brain. The creepier/funnier the thing, the easier to remember.
as i read this i realized you forgot the period at the end of the sentence and i thought .. "irony" :D