I don't know how much people care about the emblems any more, maybe they are nothing more but a remnant from the olden days. Even the most recent "unofficial emblem thread" is from 2008. But I'll just ask about this anyway:
Lately, over the last three months, emblems have kept disappearing and reappearing randomly on my user profile. All of them always come back at some point after being gone one or two days, except one: the "typewriter" emblem that you get for 15 reviews. Mine has been gone for at least about a month. Why? Is there a glitch in the system for this one?