I was thinking the same thing. Happens on the Klipsch forum all the time.
Similar thing happened to me twice this last week when potential buyers emailed me several times about a couple of amps I am selling asking questions and requesting photos. I have emailed them three times each in the last three days to see if they are still interested in the amps. I just don't get it. A follow up email "I am no longer interested" would suffice. Or in the case of this thread, "thanks for the help" would work.
Bill