people on tumblr don't think about anything
the skeleton side of tumblr is filled with people who are easily the dumbest people on the planet. they don't think about any consequences that their actions could have, all that goes through their heads is "oh they literally made literal fun of me and/or my literal beliefs, their life literally deserves to be literally ruined"
these people are batstuff insane. 4chan investigatees people who do really horrible stuff, tumblr investigatees people who make satirical comics. tumblr is a site filled with legit terrible people and i'm glad that i only come there for humorous stuff. imagine if i were to get involved in some sort of debate and i'd get investigateed because of their habit to put words into your mouth.
"you deserve to have your life ruined because if you don't agree with me, you're a cisloveist/transphobe/rape apologist/whatever buzzword i can come up with!"
ok no no no
4chan doesn't investigate people who deserve it necessarily. a lot of times they investigate people who don't deserve it
but AT LEAST 4chan doesn't have some faux moral justification for their stufftiness. they know they're bad people
sjws legitimately don't think what they're doing is wrong. that is the problem