A person that is obsessed with finding and sharing random facts - normally on a Friday, which is traditionally referred to as "Fact Friday".
Facterions (pl.), are often seen as non-conformist and dangerous to approach but conversely are on the whole harmless beings despite making people who speak to them slightly nervous and uncomfortable.
Facterions have also been known to wear gloves indoors.
Example: If another facterion clogs up my inbox with one more useless fact I'm going to scream.