Well, I finally decided to buy the lifetime subscription.
Upon completion of transaction, reviews went from “available now” to “in 4 years”.
Did that happen to anyone else/is it normal while some stuff are updating?
Another thing that is possible is that I apparently turned vacation mode on before leaving WK about 4 years ago. Upon returning, vacation mode was off, but when I bought lifetime, it suddenly said I was on vacation mode. When I turned that off, I got the glorious “next review in 4 years” message.