Personally I am growing somewhat weary of seeing the same questions being repeated over and over by certain users (sorry for picking on this one user, there are others I'm sure).
As is typical of Help Vampires, they do not appear to place much value in following up on comments and answers to their questions (instead asking conspicuously similar questions) and as such it makes my contributions also not seem valued.
Rather than spend any more time trying to help these Help Vampires I will probably just ignore them, but is that not in the spirit of this site? Encouraging them to use the site's features correctly, read the FAQ, etc. seems to only go so far. What else can we do to help Help Vampires graduate into productive members of this site?