Religion subreddits and their choice of words
Religion (or the absense of) can be an important factor in ones life and can bring like-minded people together. Let’s see what words different communities on reddit use in their posts.
About 993k randomly chosen comments to about 44k submissions from 2013-08 to 2014-07 on /r/atheism, /r/buddhism, /r/christianity, /r/hinduism, /r/islam, /r/judaism, /r/taoism and /r/zen /r/zenhabits were collected and analysed for frequency of specific words and phrases.
OK, not all of these really are religions, but for fun they are included nonetheless. ;-)
Afterlife
/r/buddhism, /r/christianity and /r/hinduism talks the most about afterlife.

afterlife
Books
/r/christianity and /r/islam talk very much about books.

books
Use of profanity and words with negative connotations
/r/atheism is the community using the most curse words.

cursing
Deity
/r/christianity, /r/hinduism and /r/islam mention deities the most.

deity
Happiness
The Zenhabit people lead the category of expressing happiness.

happiness
Love
/r/christianity talks the most about homosexuality, marriage and sex.

love
Meditation
/r/buddhism leads in mentioning meditation.

meditation
Moral
They also mention the word “ethic” much.

moral
Science
Science and evidence are very present in the atheism community.

science
Misc
Finally some misc words without a special topic.

misc
Mutual mentions
/r/atheism and /r/christianity mention each other very often, so do Buddhists and Zen. Taoism and Hinduism are mentioned very seldom overall.
(Click here for the interactive version and an explanation for this diagram type.)
That’s it. If you want to you can download the raw data all these diagrams are based on.