DigiMedia owns the "s" version. Correct me if I am wrong, but I don't think you are DigiMedia. IMO, it is bad form to request appraisals for names that you don't actually own. The rule of the Appraisal section is that you only post names that you personally own, and I think it should apply here too.
If you want opinions on value for names that you don't own, such as names that you are interested in purchasing, it is much better to ask others that are willing to help to PM you for the name and discuss the value privately.