how the public perceives the odp
It is more important that the public understands the ODP properly than gets a false perception as a result of taking courtesy as encouragement. So when you come here you can usually expect blunt answers. It is a basic fact of editing that an editor can never ever take the webmaster's business or personal finances into account when making a listing or delisting decision - it must be based purely on the eligibility of the site.
Pushing emotional buttons like my kids will starve if you don't list me, the bank will foreclose on my mortgage if you don't list me, I am disabled and my affiliate travel site is the only way I can pay my medical bills, I am 80 and on a pension, all these and more have and will be tried here to try and make editors look like uncaring monsters and the webmaster appear a deserving case in the public perception. But we don't judge webmasters - hence the categories for dubious and sleazy business models that stink from a mile away despite their borderline legality. We judge high quality unique content on websites - if you've got it then one day you will be listed, if not then we are simply not interested regardless of the webmaster and the personal and business problems that are really nothing to do with us. If you build a business case that relies on a DMOZ listing you are a fool.
The time we spend dealing with spam and other submissions, including those that have been listed at some point, but which are in breach of our guidelines, which are available to all, takes up maybe 60-70% of many editors' time. Time that could be spent on listing the many millions of sites that do meet our guidelines and that we are very happy to list. So we are not overly tolerant of those who waste our time, which is unpaid and generally unappreciated, and a blunt response is probably far more polite than what the editor is actually thinking as they are replying. Remember that we are not customer service reps paid to listen to crap all day and respond with sorry but have a nice day. What surprises me is the level of tolerance shown by good honest webmasters towards those who clog up the DMOZ unreviewed site pools - they are the reason why their own sites are still awaiting review and not listed.
What you don't see because the cases never arise here, are the hundreds of thousands of webmasters whose sites do meet guidelines and that are listed annually, many of them within days of submission. Good, high quality original sites with material of interest to editors and to our users. Sometimes when they are borderline - good unique concept but some key thing missing an editor will go out of their way to tell the webmaster of their omission or if not then they hold onto the submission until the owner works it out themselves. But there are plenty of markets, and fake IDs are one of those along with online casinos and travel agencies and real estate in some countries, where the last thing we want to do is to encourage resubmission of a rejected site after the owner has hidden the offending element away from an editor. Courtesy has its place, straight talking can be more effective though.