I am also new at caching. I would surmise that after folks are up to their 500+, 1000+ etc, you kind of run out of things to say. I would also suggest that if you would like more input to perhaps state that on your listing, especially if you'd like feedback on your first cache. A two sentence description doesn't really invite folks to elaborate!
sorry, I re-read and realize you speak of caches you were watching, not your own. Mea culpa.