system
A chat on subreddit /r/pcmasterrace
human
Smoker but only a short period inside. I uh, used to grow lots of "gourmet" mushrooms, like lots lots. The air was heavy with humidity, spore and I can imagine that short period of inside smoking would accelerate things real good.
gpt
The tar in cigarettes loves to stick to fans. The same with aspirated oils, I see this very frequently in computers that exist in oil environments such as machine shops or restaurants. This Just compounds the other issues with dust and in your case, spores.