opencaching.com does have reviewers – if you submit (and I have quite a few on there), there is a period of submission where your cache is peer reviewed, and if no negatives are posted it will be approved.
An interesting system.
1.Somebody with a grudge could consistently blackmark your caches.
2. Nobody uses it.
Of the caches I’ve had on there for over a year, I’ve had 3 or 4 finds. I put a cache out by Venford about 8 months ago and listed only there which has not yet had a single attempt.
I’m guessing DNPA have had GPSr’s donated by Garmin on the provision they place and promote caches much as the National Trust have done for a few years now.
I see nothing bad about doing this, and much good.