I sometimes think that "nudging" is a more mature way of dealing with an LJ friend's silence than dropping - but I have more than once been guilty of the latter.

Thanks for the good wishes. If "my" waitress hasn't found another job, she has to be working tomorrow - and I really want to tell her I remember that I asked her out for dinner. (I'm not counting on a "Yes" - though I would be delighted to get it - but to never get an answer would be far worse than a "No".)