The number of items in your repository is not necessarily a valuable metric for quality. However,
it can be used as a ceiling value for assessing coverage in online indexes or harvesters.
It is possible that search engines are indexing much more pages than your items and bitstreams.
While the indexing of collection and community pages is generally fine, you really don't want people to land on
specific browse or discovery results pages. Comparing your item count with page hits from search engines is the first
step in analysing this type of problem.