I noticed that, after the most recent contest was announced, there has been a minor flood of relatively meaningless posts. The cynic in me believes that someone created a user id and tried to make posts in order to reach the magic "five posts" count to immediately enter the contest. It's just too much of a coincidence when I look at one user's posting history of five quick thoughtless posts followed by a contest entry.
I am confident that, as the wise judging panel carefully reviews the posts to see if they meet the stated criteria of being useful, such an attempt to subvert the spirit of the contest rules would not pass muster. But even though I think the strategy won't work to help win the contest, it's still annoying for the clutter it produces on the boards.
Here's a gentle suggestion: In order to reduce future clutter, perhaps the next contest should make a minor clarification to the rules, changing it to something like, "You must have made five useful posts prior to the announcement date of the contest".
I know my suggestion isn't perfect. It would not necessarily be bad if a contest motivates someone to post five genuinely useful contributions after the contest starts. What is bad is when someone reads the rules and somehow believes the "five posts" criteria can be met by quickly throwing out five thoughtless context-free one-line posts that don't contribute much except clutter. Maybe Dave, in his no-nonsense style, can make the point clear via some alternate rephrasing of the rules.
Of course, Dave gets to make the rules, and I appreciate his generosity however he wants to run any contests.