I started dabbling in the foreign sets a while back (a year or so ago), but things have been a little upside down here, plus then some other features were added here that I've been involved with. I have been updating a ton of MiLB sets recently.
The thing with the foreign sets, and I got this directly from one of our experts who was entering the sets, a lot of the checklists were created by sounding out the Japanese or Chinese characters (or using computer aided voice synthesis). I found many, many instances where a name was spelled (for example) Yamaguchi in one set and then Yamuguchi in the next. Essentially, pronounced the exact same in Japanese, spelled differently in English characters. (This is why you may see some variation in some of the foreign PIDs already there.) Doing these sets takes a lot of time. Sometimes, if the name was spelled Yamaaguchi, I would edit the name to match (by removing the double letter - most likely a typo), but if it was Yamuguchi, I would just link it to the already existing PID.
At one point, I think I had most (if not all) of the MiLB sets verified. I know for a fact, I haven't looked at that (or the stats) Since August, and before that was May, and I think the checking of the stats in August was only that. A year ago, Baseball had almost 3600 sets that needed validation, just over 17,000 total sets. Nice job everyone!
-- Dan --
Note: Please see my profile for more info regarding trading (section updated 3/4/2024). I have added a large portion of my inventory to the site, and currently have trading turned on (details are in my profile).