Excuse me, but you do not get to toss off such a characterization without a serious objection. "Moving the goalposts" is a valid and meaningful criticism expressed in a short phrase that is well understood by most literate people. The history of the development of the "Arpian theories" is very aptly described by this phrase. To exclaim such a criticism is "dismissive and childish" is.... well, many words would fit here, but I think "wrong" is one of the foremost.
Originally Posted by turbo-1
Likewise, "tap dancing" has serious meaning and has previously been presented as a serious criticism. If you don't understand the meaning, just ask.
Everyone is entitled to his own opinion, but not his own facts.