Strawmanning critics as raving lunatics is tumblr.
Strawmanning critics as obsessed with criticizing you is tumblr.
Trans shit, body positivity and body hair is tumblr.
Identifying with characters to an abnormal degree is tumblr.
OC bullshit and shitty fanfiction is tumblr.
Getting emotionally attached to characters is tumblr.
Weird shipping just for the sake of weird is tumblr.
Do I need to go on?
Just because tumblr defines a pretty broad concept doesn't mean it isn't defined.
Everyone knows exactly what it means. Anyone who isn't from tumblr, of course, that is, because
Lack of self awareness is extremely tumblr.