The statement "I found it on another blog as a solution to the problem" worries we. Just because someone says something, especially on the internet, doesn't mean it's correct. As many have pointed out previously, enforcing something in the app isn't really enforcing anything at all, because as soon as someone uses a different app there's no enforcement at all.

(I'd also be very amused to watch how that "solution" scaled as the number of rows increased, unless I had to support it that is).