The mistakes in our genome make a stronger case for evolution than the bits that are right. In essence, a common designer may have designed different creatures with the same "right bits", but why would an intelligent designer have put the same mistakes in two independently designed creatures?
I like the analogy with cheating. If two papers have the same mistakes (misspellings, odd grammatical errors, etc.), it is a pretty safe bet that one was copied from the other or they were both originated from a shared source.
I like the analogy with cheating. If two papers have the same mistakes (misspellings, odd grammatical errors, etc.), it is a pretty safe bet that one was copied from the other or they were both originated from a shared source.


Comments
This perhaps argues against an intelligent designer, but it actually seems to assume a designer of some sort.
It's like using dog breeds to illustrate "natural" selection.
Second: the whole purpose of terming these harmful mutations as "mistakes" rather than "problems" is to point out the error in beleving that an intelegent being did the designing. After all, it demonstrates quite vividly that if there was an intended outcome, it has failed. So any being doing designing must be too stupid to learn from its mistakes. Since most intelligent designers also believe that the designer is God, this makes Intelligent Design unpalatible for them.
Third: It appears that the word "mistakes" is primarily being used in connection with an intelligent designer, and is not being associated with the concept of random mutations and evolution. For example, the paper specifically referrs to "errors in the gene code."
In order to say that an intended goal has not been met, it is necessary to know what that intent actually is. For someone arguing against intelligent design to define this intent would necessarily be to make a straw-man argument. It is up to the ID proponents to state what this supposed intent is. If they cannot do so, that is their problem, and a big one at that.
Those claims are not inconsistent with the examples in this article. Really, this article is more against Creationism than Intelligent design, but it's hard not to lump them together sometimes.