event NX item

I exchange a Witch's Broomstick it say "Available until 1/13/2018"
but the change list didn't say that have time limit.
why it don't show time limit in list?

 

lots of the items are basically scams and will expire in january 2018. i know both of the rings expire january 2018 as well.

 

I think that's not fair. If it has time limit. should be show in list when not be change.

 

You mean besides telling you it expires after 90 days?

 

sry I don't see that. because last Halloween item list has notice.
now I know, thx a lot!