in r/relationships
https://www.reddit.com/r/relationships/comments/5ven6z/me_33f_and_my_so_33m_with_our_friends_30s_mf_bffs/Bride and groom blocks rooms at a hotel with a minimum stay that they are on the hook for if rooms go unbooked. Cheaper hotel options were also available. Friends book at fancy hotel then discover an AirBnB that's way cheaper so they go in with a bunch of other couples and cancel their hotel rooms and now Bride and Groom are on the hook for $700+
Now, granted, I'm not sure the etiquette of dealing with this after people cancel although someone in the comments has asked where the couple was financially if none of the rooms got booked and so far the bride hasn't yet addressed that question.
That said, the comments. OMG the comments. Some people take the "You made the deal with the hotel, it sucks but it's on you" while others, well ....
"
Just wait till that entire group of people shows up without a gift. I really found out people's true colors when I got married. It was a shock!"
"Gifts are there to help offset the cost of the wedding. At the very minimum you should be giving a gift that's equivalent to the food + drinks cost. Someone close enough to you is inviting you to a moment that they're shelling out 5 figures for. And you can't even give a gift to cover the food/drink expenses? That's what is actually tacky. If you can't pay the price per person then give your seat up to someone who can spare $50-100/person."
"
You eat the food, drink the drinks. Gifts are expected."
"In your thank you notes, make sure to thank them each for the -$400 that they graciously gifted you."
"Just curious, can you uninvite them to the wedding and save on their plate?"