I'm sure I'll use this even more than my DeadJournal. Rather than LiveJournal for grownups (with ads), it appears to want to be MySpace for grownups (with as many ads; here's to FlashBlock). The median mean age of paid users on LiveJournal is thirty-one, so Vox must be aiming for the Daily Mail set.
(By the way, it doesn't appear to accept entered HTML; you have to use the clicky buttons for formatting. So much for writing offline.)
LiveJournal is a mediocre blogging engine; its entire secret sauce is the network effect, which is the only reason everyone didn't just get up and leave with the silly shit SixApart have been pulling of late. Note also that LJ grew organically rather than being planned that way. Vox appears to be an attempt to synthesise the effect. The Milton Keynes of social network sites.
If someone could tell me something Vox can do that the others can't, I'm all ears.
Edit: * I can't find that statistic, dammit. Anyone? Edit 2:
beckyzoole, here.