The "Sextortion" spam is in technical terms mind-numbingly boring, following the same patterns as other spam to a fault, distinguishing itself only in the embarrasment approach to extortion.
Interestingly, this piece seems to be bot-labeled as "porn" for some DNS based blocklists, so the author has made the text available here too: https://nxdomain.no/~peter/the_numbers_show_we_have_a_failur...