It makes you feel twice as good as just winning alone!
I don't think it has any ramifications for the original case, but future respondents to complaints by the same complainant may cite the case as evidence of a pattern of bad faith.
It is remotely possible it could work in your favor in negotiating a sale to the complainant, but realistically if their complaint rises to the level of reverse domain name hijacking they are likely to be very difficult to deal with.