I just see this sentence thrown around a lot and I have been to two weddings now where they kindly explained that they had no registry due to such and such reason. One explained that they were planning on backpacking for several months following the wedding and they didn’t have much use for any items! Another said something along the lines of “If you want to give we would appreciate help in our future lives together.”
Neither came off tacky because I knew they and knew their hearts and that they were simply saving their guests from buying them an electric mixer their aunt figured they wanted and that they already own.
To each their own, but I just want to put that out there because I think it gets shot down before it’s heard sometimes.