Speaking of tools having trouble recognizing things, one of the more common "bug reports" I get is that the Tarsnap website is disclosing user email addresses -

Speaking of tools having trouble recognizing things, one of the more common "bug reports" I get is that the Tarsnap website is disclosing user email addresses -- specifically, "me@example.com" -- and paths -- specifically, the paths /home/auser and /home/anotheruser.