Editors should generally follow it, though exceptions may apply. Substantive edits to this page should reflect consensus. When in doubt, discuss first on this guideline's talk page.
This page in a nutshell: Wikipedia writers and editors improve articles in the site, but sometimes, they contribute patent nonsense. There are various ways to deal with patent nonsense.
Wikipedia writers and editors contribute a lot of featured and good articles, but occasionally, they contribute some patent nonsense. This falls into two categories:
Total nonsense, e.g. text that purposefully has no relevant meaning at all (e.g. lorem ipsum) and random text (banging on the keyboard).
Content that, while apparently intended to mean something, is so confusing that no reasonable person can be expected to make any sense of it, such as "The land attests that agriculture shafts the uncontrollably mild delicacy and wistfully inanimates the fresh spruce tango jumpsuit impressively in one month" (see word salad). If the meaning cannot be identified, it is impossible to accurately copy-edit the text.