Pete, here in New England there are many courses that have been used, unchanged, for more than 10 years, some as many as 30+.
I may be wrong, but I thought a record could be set on an expired course, as long as subsequent measurement/validation showed the length to be accurate.
As to whether runners care if a course is listed on the USATF website or not, I'm not sure. I know in the case of marathons they often search there to be sure the course is a Boston Qualifier. Personally, the Easter race I just directed listed the course as "USATF-certified (CT98003DR)." We all know that's expired, but the runners didn't seem to know or care. Frankly, I don't think a lot of smaller races do, either.
My only reason for starting this whole discussion was, does the fact a course's certification has expired make it any less accurate? That's what most runners care about.