Kindly, tell me if this explanation is correct.
I'm not in the position to answer this, you should ask the man himself
![Lips sealed](https://bitcointalk.org/Smileys/default/lipsrsealed.gif)
But it seems like he'd speculated that storage space will indeed become a problem regardless of Moore's Law's growth rate,
that's why that part is included in "
Reclaiming Disk Space" which hints about spent transaction "
pruning".
AFAIK, it wasn't implemented; according to the explanation, it is a lot different than the pruning option we have today.