Wikipedia:Avoid data-hoarding

This essay describes issues about collecting extensive piles of information about a subject, analogous to hoarders cluttering a room with stacks and stacks of items, filling the room to the ceiling. Likewise, editors must be careful not to crowd, or over-stack, an article with too much data, to the point where all the minute details clutter the page and obscure the overall view of the topic.

Some articles seem crowded, with too much data to provide a balanced view of the topic.

The solution to an obstructed room, filled by hoarding, is not only to store many items in separate storage areas, but also to throw items away, or delete excessive items. Similarly, some sections of a cluttered page could be moved into spinoff sub-articles, but often, a large amount of detail should be deleted, when it does not help to explain the reasoning, or description of events in the article.