"So let's recap since you're confused on the timeline. So what happened was I posted a video asking for tips on how to clean out the bottom of my vents without making more rust, because I understand that cleaning with water would potentially make it rusty. You start belittling me, berating me, and attacking me in the comments, calling me delusional. And here we are. I'm just as confused as everybody else. You also implied that it's more likely that the dirt got in the floor vents that are on the floor from underneath in the crawl space, which I don't have because this is an apartment, instead of just coming from the floor because floors get dirty."