Michael Jackson signed everything with "1998" for years before 1998. I get why but when did he stop? I've seen tons of videos of him signing in the 2000s and he didn't add it then. But fans who met him and got things signed in the early 90s have "1998" on the pieces. I've seen junk on Etsy with the 1998 added Invincible and Blood On The Dance Floor. Etsy alone makes it garbage but when did he retire the 1998 add on? And when did he start?