father INSISTS this isn't mold because he poured bleach on it... im skeptical

not looking for specific ID, just confirmation that this is or isn't mold! pic 1 is pre-bleach pic 2 & 3 are post-bleach pic 4 is a smaller cluster that didn't get bleached note: pic 4 looks shiny, but the larger splotch wasn't/isn't. located in Brunswick County, NC

TLDR: father poured some bleach on suspicious washing machine splotch, wiped it away after 10 seconds, then insists it cannot possibly be bleach because the splotch remains

unabridged version: i opened the utter war crime that is my father's washing machine to Mr. Foreboding Splotch here. upon receiving news of this intruder, he simply poured some bleach and wiped it with a paper towel and said, "it can't be mold because the bleach would've wiped it out." i'm really not convinced, especially because that bleach sat there for maybe 10 seconds before it got wiped. (it'd make sense for it to be mold, too, because they close the washer door while it's still sopping wet in there every time. who does that???) anyway, i didn't see Mr. Foreboding Splotch when i did laundry a few days ago because i was doing it in the dark, but i have a pretty bad mold allergy and i've been having fairly constant allergic reactions since getting here. until seeing this, i've been blaming it on the dog (who i am also allergic to), but mold spores in my clothes honestly makes more sense, because i keep getting hives under my clothing where the Goofer Woofer can't get me.

either way, laundry can wait until i'm back at home because i am NOT putting my clothes in that machine. i just want confirmation that i'm not insane and it actually looks like mold. thanks in advance, friends!