Connie, yes they will put energy into making seeds if a pod forms, plus I do not want seeds from a pod falling into my garden and growing. Not unless I make the cross and plant the seeds so I know what is growing. I want my daylilies putting their energy into more flowers I have been planting more that rebloom, are bud builders or have a long bloom season also growth of the plant is important to me. I don't cut off the scapes but wait for them to dry when they are easy to pull without damaging the plant. I am a member of the AHS also of their email robin, these topics have been discussed there for interesting insights. Here is their website in case you haven't looked at it there is quite a lot of information for folks to read all about my favorite plant the daylily.
http://www.daylilies.org/