if you keep a delimited relationship it provides some additional context when understanding user change documents. When PFUD for org structure is run, you will see change documents for SU01 roles/profile removal. It's nice to know where the user got this access (esp if they held multiple positions)
if the HRP1001 has change logging then this is not so much an issue
in PO13 there are other selections (such as current) which limit seeing expired relationships
Regards
Colleen