I personally do use an inch but no more than an inch. I am also thinking of the bigger daylily seeds which seems to be what I have most of the time. If the seed is smaller, then not as deep of a hole.
The reason I use an inch is because the new seedling doesn't fall over if I accidentally bump it or brush up against it. I've had that happen a number of times, so I started planting them an inch deep. It has never been a problem for me and I get good germination rates from daylily seeds that do not seem to be affected by that depth of planting. I do understand what you are saying though, Sue.
