That blog post doesn't mention the weaknesses of Cryptonote/RingCT which I have explained numerous time. I posted a comment to that blog and it still hasn't appeared. Thus so far, I think that blog is a monero shilling vehicle and not objective.
Also one final followup to slapper regarding what I claim is his incorrect perception that I am trying to take credit of the work of others (and please do click this quote so you can go read all the context):
[...]
Please understand the salient distinction. One general problem that I've observed numerous times in the block chain arena, is the very smart coders and mathematicians/cryptographers seem to have blind spots on economics (and even on the
importance of degrees-of-freedom in design).