Reader challenge explained

As I promised, here's a brief explanation of the reader challenge I posted earlier. (Deadlines in the summer? Baaad idea.) I will leave decoding as homework though. Spoiler alert! Almost trivial ★☆☆☆☆ This is a simple substitution cipher using my haxor handle (repeated characters removed) as the key: WINDYTABCEFGHJKLMOPQRSUVXZABCDEFGHIJKLMNOPQRSTUVWXYZ Reversal...