I made a minor edit to this answer on SO to fix the format of a broken link. Looking at the revision history now, it appears I fixed nothing and furthermore removed a useful example. At first I was quite worried that it was my screw-up, but I realized that the source of what I edited did not match what is now the first revision.
I'm now thinking that I've been burned by the '5-minute window' feature of SO. Is this a reasonable conclusion?
If so, consider me quite displeased. I guess from now on I'll refrain from editing answers within 5 minutes of their posting. I wish I had known that prior.