"I LOVE hype! I'll take your hype! I'm having hype, hype, hype, bacon, eggs, and hype!"
Sorry, but this is a truly awful description.
Let me reshuffle the words a bit to illustrate a small part of what I mean.
A non-chlorine [product] ... using copper and silver ionization! Well, duh.
algae control [product] to [drumroll, please] ... prevent algae! [But, inquiring minds want to know, does it really inhibit algae growth also?]
In swimming pools, koi ponds, hot tubs, or spas. [presumably, the site contains a patented java application that automatically blocks anyone who might consider attempting to use the product in a tepid tub or a goldfish pond? Because if not, this information is in no conceivable way related to a review of the site!]
So that description has almost nothing to do with information, and everything to do with keyword-stuffing. And the worst of it is, in the current search engine climate, the ODP description is less effective as a cavity to keyword-stuff than even META tags.
This description is worth a detailed critique, not because of this one site [I could find dozens of worse examples in a few minutes search of the Unreviewed queues], but because, well, I could find dozens of worse examples.... and perhaps this will give other webmasters an idea of the kind of initial impression they are giving with their Business-Degree "Marketing-to-Dummies 101" rules: "repeat all your important words three times" "develop a personal relationship with the victim by addressing them personally and patronizing their tastes and desires" "tell the target victims exactly what to do and when to do it NOW!" It is NOT a mild impression. And it is NOT a favorable impression.
ODP ideals are different. Don't repeat any words unless the syntax requires it--we're building a directory for readers, not keyword-fodder for search engines (that's what your own website is). Don't tell anyone where to go or what to do there--not our business, we're providing a roadmap, not directions. Avoid first OR second personal pronouns--ODP editors (who are responsible for the site descriptions) can't speak for the URL submitter -- let alone the webmaster -- and don't know the surfer.
Please don't take this personally. I have done some technical writing professionally. But I haven't taken the marketing courses, and I couldn't write marketing copy to save my life. (I know: I've tried, to help friends.) And so I can imagine that the ideals of "technical" or "objective" informational writing style may be just as difficult or impossible for people with a background in, or mindset for, persuasive writing. So I know that we can't reasonably expect all site submitters, webmasters or not, to be able to write adequate site descriptions.
But we can try to explain the guidelines WE have -- they are simple enough to recognize, if not always easy to implement -- so that webmasters will know what to expect to happen to their suggested description. And I can say that we appreciate webmasters' attempts to sympathize with, and write to our guidelines -- even if we change them, we change them MUCH more sympathetically.