It would have been nice if this article showed benefits or the lack of benefits to advanced defrag/optimization algorithms such as defragging alphabetically via O&O Defrag or Ultimate Defrag , or 'SmartPlacement' by Raxco's PerfectDisk. Or Diskeeper's i-faaaaaaaaast.
You should NOT defrag a SSD. You are in fact causing excess wearing of the drive for no benefit. They don't suffer from the defragmentation slowdown like a spinning HDD. Access time for the fist mb of a SSD to the last is the same so it does not matter where the data you're retrieving is coming from. Windows even turn off scheduled defrags by default for SSDs.