Because a giant portion of Tumblr is a bunch of retards. Not everyone mind you, since I believe that there also is a good deal of normal people there, but as I said, a good bunch. It is very simple when one knows how they function.
They all function solely based on emotion, and nothing else. They will fill the void that they get from real life by reading some bullshit, and then they'll become simps for that particular writer. After that, the said author becomes like a cult figure for them, since they are all just parasocial like that. So whatever the said writer says or does, they'll all jump to their defense, but even that has some dumb limits.
So yeah, they don't use their minds at all, which is basically the reason for what you described.
For example, I've seen Suevi writer lose their absolute ****ing mind over some ask that was just that. A regular ask. But I guess I'm wrong, and somehow the ask told them to go **** themselves in some very secretive way, hence the reaction to it. And then, the friends of the writer and their readers all just to defend them, like, huh?
Or hell, CC will get an ask along the lines of, when will we get an update, which she'll answer by the famous "when I fell like it, leave me alone. lol" and her dogs will be like yes queen, tell em. Like common.
In future, I recommend posting screenshots, so we can all have a laugh on their expense
