Unrelated to Rouille, but I really like how the word factoid seems to be slowly inverting it's definition. Where it actually means an "Often thought fact that is actually incorrect", e.g. eating 8 spiders in your sleep per year. I am unsure if your fact is actually a factoid, but your comment reads as if you mean to use the word factoid in a reduced size of the word fact, it seems to mean something like; a small fact. In any case I see the word often "misused" in the latter sense. The appearant misuse of the factoid might make the newly acquired definition a ironic one, like an oxymoron.
I feel the latter definition of the word factoid feels more sensical: suffixing the word fact with -oid makes the text in which it is applied softer, where the word fact is rather harsh, the word factoid feels more friendly, like boba/ kiki, I speculate. In addition I think using more letters to address the subject you're about to share might make the reader hold its attention for longer and thus feels "right" to use in short sentences. I also feel as if I prefer to read the sentence in which it occurs with a slight upward inflection, which I find more positive.
Personally I hope the latter definition will stick and humanity is one more ironic definition richer.