This issue has been around for YEARS now. Since 1998 at least. What it is, somebody at Ebay a long time ago got it into their head that "import" was synonymous with Hong Kong pirate editions. So even now, they'll frequently shitcan an auction for a legitimately-produced import game. Happened to me a few times when I was selling games and hardware last year -- they kiboshed two auctions for Saturn and PSX games and another auction for my switched Saturn console.
The enforcement of the policy is inconsistent. Sometimes an auction will survive to completion, other times they'll kill it in 12 hours or less. "Import" is the word their search keys on, so if you keep that out of your auction description (use "Japanese" instead or something), that sometimes helps.
DFS.