Bankruptcy Law Questions? Ask a Bankruptcy Lawyer.
When you asked about the benefit to the creditor, were you asking about the benefit from filing a Motion for Relief?
There is no requirement for a creditor to file a Proof of Claim before filing a Motion for Relief.
If a creditor is not required to file a Proof of Claim, that means the creditor was told to not file one. (In general, only unsecured creditors are ever told to file Proofs of Claim.)
So, the reason for not filing one is not that there is a benefit to not filing one, the reason is they were told not to.
I think this is what you wanted to know. If not, please let me know.