Okay, I'm kind of in two-minds about this one. For one thing, where I come from, it's not considered strictly necessary to have written thank-you notes for shower gifts - *as long as* the bride to be/mom to be had plenty of opportunity to give each giver a sincere, in-person thanks. If it was a huge shower with 20+ guests, that's probably not the case, and therefore written TY notes are necessary - as with, naturally, anyone who could not attend but sent a gift. And while I don't really like the idea of guests addressing their own TY notes - for me, it wouldn't be the hill-to-die-on either. My figuring would be that raising a vocal objection would just add unneeded drama to the occasion - and possibly make the GOH feel guilty even if it wasn't her idea.