Good point!

I like this

Well, while we are being ‘that guy’, factoid is one of those words which has changed its meaning by being used wrongly for so long that the original meaning has all but vanished.

A factoid is technically supposed to be something resembling fact, but not actual fact. (The Greek suffix ‘-oid’ normally being used for that purpose, like in paranoid, “like knowledge” or asteroid, “like a star”).

The best thing about factoid, is that factoid is now a factoid. Because it resembles what it is not lol…

Anyway, nowadays, you are allowed to use it the way you did, at least in the descriptivist world view. The prescriptivists may disagree, however. And those people are often ‘that guy’ ;)