I personally think sta-kool and Naab have raised a valid point, which is fear for the information being spread either now or later. This should be a very realistic possibility for a significant portion of the board’s members…a good portion of you married guys will eventually get divorced (unfortunately).
In addition to that, I’d add that people generally have less respect for accomplishments when they know how much work was put in. I’m sure people have heard the phrase “oh he’s not that smart, he just works very hard.”
Here not only do you get the advantage of not showing how hard you worked for it (appearing naturally smart, which is generally more impressive to people I think), but you also avoid the pitfalls of showing insecurity - which is generally a sexual turnoff, I think (detracting from what may be your original reason to enlarge your penis).
So, there are two more reasons.