The bi-weekly Photo/Sharing mailing of 4/16/18 contained a distinct difference from almost all previous such mailings.  The entire second section (where other features like Aunt Edna, Verses, Guest Voices, Math Tidbits, and other Updates usually reside) was missing.  To see the mailing again, visit Apr16Mailing.
I did indeed have subscribers take up the challenge and mention some discrepancies – and that was pleasing – but Joshua Walters was the only person to correctly identify the change.
Actually, this made my experiment successful, in that I gained information, as desired.  I had been wondering if that entire section was relevant/worthwhile as a regular feature – I can actually put other frequent sharings in the Wild Cards, and could still make announcements as needed – and I think I got that feeling confirmed.  (As a teaser, then, watch for a Wild Card link to another Aunt Edna quote next time [May 14]!)
Thanks to all that participated!