Revealing publicly available information (actually publicly available, in the sense of "any person can easily look this up", not "publicly available" in a sense of "publicly available in leaked databases", which actual doxxers use as an excuse for their actions) isn't doxxing.
"A popular tech YouTuber with over 350,000 subscribers has lost his channel after YouTube’s automated systems flagged him for an alleged connection to a completely unrelated Japanese channel that received copyright strikes."
I don't think it really matters how "cool" you are with someone while actively trying to doxx them.