@rok-sivante, First of all it's really unfortunate for sure and that is because, when we are talking about the Decentralised Economy then for sure we should see effectivity in that way.
But, if we are not able to find one year back posts then that's really unfortunate aspect for sure because our work backed with the time and effort and if it's not accessible then that's an negative aspect.
And in my opinion Steemit Team should consider this aspect because we never know which post can help us and for that we have to scroll back and if we fail to get the post that's an discouraging aspect.
Let's hope that, over the time we can see more and more improvements. And if we see small small updates then it can bring the big changes and can bring big effects.
Wishing you an great day and stay blessed. 🙂