No one's denying that stuff was bad pre-tumblr, but if you're the airt, you said what happened on tumblr was more mild than pre-tumblr.

Doxxing is much more serious than getting an entire website taken down. It's someone hacking and posting personal, identifiable information on the internet - personal addresses, ID numbers, etc. - for people do with as they wish. There's a difference between being driven off fandom sites because fandom has a bug up their ass and having someone search hack your personal info and use it to disrupt your real life.