https://github.com/litecoin-project/litecoin/commit/db4d8e21d99551bef4c807aa1534a074e4b7964d

In one way in particular, the transaction fees per kilobyte completely failed to account for the actual cost to the network.  If Bitcoin had adopted a common-sense rule like this, I would have had no reason to join Litecoin development last year.  This is one of the few economic design flaws that Satoshi overlooked in the original design.