Old freebee books/chapters no longer available

Haven't used this website in about 4-5 years. But back then certain books/chapters were given free to users that were part of the FAKKU books Founders. which could be added to your collection.
When checking out my collection all these books are now greyed out and require an active subscription to be accessed.

Is this intentional? (some comments also noted certain books were released as a "new release" 4 years later)
Did something go wrong with my account due to inactivity for so long?

edit:
These freebees were given in the special founder/books forum section which doesnt exist anymore.

I take it that noone remembers this?

I think what you're referring to is how before we had the subscription service, we initially teased it by releasing a dozen or so magazine chapters over the course of half a year leading up the the launch. As the subscription didn't exist yet, those were made accessible to users who had previously bought a FAKKU Books title. I don't remember when exactly, but at some point those chapters were converted into regular subscription chapters (they were handled a bit differently previously given the unusual circumstances). I just know we made a forum post about it at the time, but that was year ago at this point.

I think I know what Biologist is talking about. I also have a collection called "Fakku Rewards." I was able to find the forum threads. Here are some of them among the many threads that are all labeled "FAKKU Books Gift Week":

https://www.fakku.net/forums/books/fakku-books-freebie
https://www.fakku.net/forums/books/fakku-books-gift-week-3
https://www.fakku.net/forums/books/fakku-books-gift-week-13

I have a total of 12 different chapters that were saved to that "Rewards" collection I have.