>>6156363I have three 2hu nendos, the oldest being Remilia [2010] that I bought mint in box from a private sale on My Figure Collection last year. No problems with plasticizer leakage or anything else.
On that note, if your worried about plasticizer leaking, a way you can prevent it is to take your toy [or anything made of PVC] and put it into a freezer for 20 minutes, which will harden the plastic and plasticizer, preventing any leakage. It's good to do this every couple of months.