Thanks. From where I stand, though, I'm not sure I perceive the same separate corners as you do. From my POV it's all kind of one monolithic thing that doesn't care a jot for my existence (I never had people on tumblr contact me to praise my work, or any suggestion that tublr-based folk are aware of anything I've done, nor any responses to, well, anything I've ever posted there save from folk I know from outside tumlbr...and there's other stuff I could whinge about too, but I won't belabor it).
But really it's kinda my own fault, since I know this always triggers me, I tumblr saviored most of it, but I go back and look anyway whenever others talk about the site. =P