Temporary suspension of acceptance of mail to the United States

Title is not accurate. They're allowing personal shipments under $100, and the rest can be shipped via their UGX service.

It sounds like JP doesn't want to deal with the customs paperwork at scale (edit: also the deposits).

Under $100... by what measure? I'm going to Japan soon and was planning on shipping a bunch of clothes, books, etc to myself. I'm not going to sell any of it, I just want to send a bunch of stuff back without having to deal with checking another bag. So as far as I'm concerned, there's no dollar value. I'm buying stuff in Yen for my own personal use...

But I suppose I'll just check a bag or use a different carrier...