To easy
Typically, I try to post the daily puzzles to provide a few minutes of solving time before the Rush Limbaugh show for most people here. More challenging puzzles may be more fun for a few people, but provide less interest for the greater contingent. And to be frank, this is a political site, not a Dell crossword group. ;)
However, if there is consensus (or more specifically, a lack of people complaining), I can easily incorporate two puzzles per day, the first puzzle the usual “too easy” version, and the other one a bit more challenging. For convenience, both could be printed on the same page.
Here is an example of a more challenging puzzle that I posted the other day that could be done daily as well. http://freerepublic.com/focus/f-chat/3752093/posts