WarOne has it right- the reputable traders list is primarily upkept by Ketara (hurrah! thanks for all the hard work

). I would suggest waiting a month before
PM'ing him about feedback, however- this ain't ebay, it's all manual, baby!!
However,
PM's thanking him for his hard work on it might have the desired effect, that a "Where's my feedback!?"
PM would not

*hint hint*
Locking also, as this really belonged in Nuts & Bolts...