The Internet is a gold mine of information. But if you write that cliché on your web page, you dilute my "gold mine" search results.
A "gold mine" is a place where miners extract gold from the ground.
Most of Google's top search results for "literally" point to suggestions that you avoid the word, even if you mean it.
Everybody has the habit of writing clichés, just as everybody naturally spends more time choosing adjectives and adverbs than the nouns and verbs they adorn.
Need incentive to improve your style? Tell Google to email you daily search results of a cliché. I'm researching gold mines, and it's painful. I suppose I should be thankful I'm not researching gun smoke or red hands.