This is a great article from AgainFaster.com about the "Non-Negotiability of Perfection" -- in other words, the reason we bug you all the time to have good form.

Here's an excerpt, follow the link below to read the full article - it's worth the time.

"Athletes often set up a false dichotomy between perfect form and intensity, assuming that as one increases the other must necessarily fall. This idea is a thinly disguised excuse for athletic complacency. Rather than revisit proper technique through low-intensity, low-excitement skill work, the athlete chooses to pursue personal records with diminished form. The unstated reason for this choice: it’s easy on the ego to put up “good” WOD times. Taking a hit to your “Fran” time in order to perform perfect thrusters is not going to move you up the records board—at least not right away—and the blow to the ego is too much to bear.

In reality, form and intensity are not mutually exclusive, but the non-linearity of their relationship leads novice athletes to the wrong conclusion. For the novice, maintaining form becomes a cruel joke as intensity increases, leading to the erroneous conclusion that the two cannot coexist. Advanced athletes believe the opposite. These athletes recognize that continuous high-intensity work is nearly impossible without strict attention to form. The advanced athlete knows that perfect form is perfect for a reason: it imparts structural advantages that poor form does not."

AgainFaster.com - The Non-Negotiability of Perfection