That is what I usually end up having to do. The worst problem I've had so far was one directory endlessly reappearing even after deleting it from all devices manually. I looked into it and found out it was because android syncthing can't handle some characters in the directory names, but of course it doesn't tell you this. Just renaming the directory duplicated the data with the old name, so I had to setup everything from scratch like you said.
I assume this is a murican problem. Where I live the delivery apps are about 5-15% more expensive than grabbing it yourself. If you order from a close by restaurant (<8km) the delivery is free most of the time, so you only have to pay the service fee (we don't do tips).
I imagine it being more like "let's have a fuck-off"