::::::There's a minor problem with that - was the event\topic truly notable when it was deemed to be so? It seems the NTEMP idea has been either ignored or refined in some ares, primarily withers of reality TV shows. Yes, it "notable" but so notable as to justify bio articles. 
 ::::::And there is also a nagging question: Is the inclusion because the event was indeed someone that patterned themselves after the Joker or the reporters assumed the connection. If it's the former, then it's likely that there will be grounds for the "see also". If its the latter and the link is all but dropped in the ongoing coverage it isn't notable for this article. 
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