Yes, I just posted about it on there, actually. Non-alphabetic characters seem to do badly in combo with a "delete list" button. I've 3 phantom lists now. One of which I was able to catch early (only 1 spectre word) and re-formed into another list.
Confession: this was initially a list of the different, obtuse and downright sneaky spellings of V1@gr@ I get from spammers. But many of them can't be entered effectively because they use brackets. So I heaved the lot, although the list still shows as containing one word. What might it be, pray tell?