I try to update the database 2 or 3 times each month.
As you can see from the updates historyhttps://www.coollector.com/history.html
I'm not always up to that standard. When I'm not, it's because I'm struggling with a technical issue. For example during Covid confinement, my Mac broke and it's been a PITA to try to get it fixed and in the end to get a new one.
I noticed that some are from 2017 with no indication (i.e. a green arrow/font reply), that the movie had been added
Don't know, 2017 is prehistory. All I can say is that with each release all the requests are supposed to be added, except those rejected or those which arrived a bit too late to be included (they'll be next time).