This is one of my hot button topics!!

I think the guest (or potential guest) OWES the host the courtesy of a reply. I generally offer a prompt reply of yes, no, or maybe right away. Then I follow up the "maybe" with a yes or no as soon as I can.

When I plan events, I normally request "Please RSVP by July 6” but that doesn't always work. I then contact the non-responders a few days after the RSVP due date.

It is one thing if we are planning on going somewhere... But I have had events at my house and I need to have a pretty close head count to plan LOTS of details!

It is just rude to RSVP yes, then not attend or vice versa!