That's really true, I suppose a fandom arrives at tumblr and goes, oh!! You can post fic AND you can post art AND you can meta/rant/link to things, and share it all around and discuss it and never have to leave this one site. You just can't do them all quite as effectively or wholly as you can in other individual places, and it has gradually become still harder to do some of them, in a proverbial "frog in a slowly-heating pot of water" way.

I have wondered that, too, and I have a really strong feeling that what'd happen is I'd just never see most of my friends again. :/ I'm happy that the crossposting feature exists, but for me, I guess the ideal sort of thing I'd post to tumblr would be those short, punctuation-less/tumblr dialect commentary posts, you know? whereas what I'd post to Dreamwidth would be... the kind of more personal/meaty things I already do, but more frequently.