At a guess, each of the "bogus" cards I've been creating came about through my attempts to use the standard "paste" function - pretzel-V - to include text from other sources or from previous cards.

Does this help?

Of course, I'm willing to put some of the blame on Holly's shoulders. Note that her icon snuck in on my cards this time, due to my forgetfulness. I've already fixed this for next issue, by the way.