i've seen the suggestion for special releases to not count towards a full collection, and we know store pets don't count - based on this, why do store items count? store pets are removed from the collection as they're hard to get hold of if you don't have money, but the same applies to store items. cs is a site for kids, who wouldn't be able to buy things.
i believe that store items should either not count towards a full collection or have to be toggled on. i personally have every free item from 2025, but haven't been collecting the store ones as i don't believe they count. it would get expensive if i or other users were to try and get hold of them, especially older ones.
although you can filter the archive so it just says free, it still won't give you a full collection, even though this applies with pets.
please feel free to debate in replies, just don't argue - all opinions are valid :)