"So, you'll understand if I take your criticism of the designer with amusement rather than taking it seriously."
It was you who implied faulty design when you said,
"The notion that the giraffes neck and leg dimensions were naturally selected is one that is rather dubious if one has ever seen a giraffe drink water."
You can't have it both ways. You can't say that an example of excellent design is evidence for a designer and on the other hand an example of lousy design is also evidence for a designer.
You can't make crap up out of whole cloth.
Comprende'?