Consider the context, Isha. He has a prejudice against Reactives (Fours, Sixes and Eights), hasn't ever read what Joy has said about herself, and has never met Expat.
Personally, I think it's easier to imagine niffweed as a Five than it is to imagine you are.
Why is McNew's being a One shocking to you? He's an EII.Rmcnew ... a 1? That suggestion wins first prize in the Absurdity Contest.
No, I think Herzy's being a Seven, my being an Eight, tcaudilllg's being a Five, Fabio's being a Seven, Kristiina's being a Three, liveandletlive's being a Seven and UDP's being a One is glaringly obvious.
Why are there no SEE Eights or IEI Fives? Look: INFP Fives are quite common, and INFJ Fives can be found.