I didn't hate it, because I never saw anyone use it, but in theory it's pretty obnoxious and presumptuous. I mean, srsly, it is no one's business how often I do or don't update my journal, and certainly no one's place to tell me I must do so because they have decided I don't post enough. (Not that I would ever be subject to a nudge anyway, since I post daily, but jeez. A lot of people on my flist go for months or more without posting and it would never occur to me to tell them to do otherwise.)