TASK DEFINITION: Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.
PROBLEM: Is there a word that describes a person who spreads others' secrets without their permission?.

SOLUTION: 'gossiper' fits perfectly. (not specific for secrets, though) a person given to gossiping and divulging personal information about others - TFD 'yenta' is a slang word for a person, especially a woman, who is considered to be meddlesome or gossipy. a person who habitually reveals personal or sensational facts about others. e.g. 'the couple's loud quarrel had the building's yentas yapping for a week.' MW related words: blab, gossip, gossipmonger, newsmonger, rumormonger, scandalmonger, tabby, talebearer, taleteller, tattle, tattler, tattletale, telltale, whisperer.

PROBLEM: I would tend to write double-l, but Google gives me more single-l, so I'm guessing it's an Atlantic divide thing. And I guess all the other *full words.

SOLUTION: I would say successfull is a typo. Neither Merriam-Webster nor Wiktionary mention it as an alternative spelling. The British National Corpus has 10695 cites for successful and exactly one for successfull. According to OneLook, 33 dictionaries have an entry for successful, but only Wordnik has a few cites for successfull (without a definition). Edit: by popular request, I will add that the adverb successfully is written with two L's. Successfuly would be incorrect.

PROBLEM: I want to use one word to express how people who have very different world views are naturally pushed apart, like water and oil. It's not quite repulsion, but it's the natural avoidance. Thoughts? Example below: I don't find them interesting and the feeling is mutual. So I'm happy for this natural [insert word here].

SOLUTION:
Here, 'Repulsion' can be used. But it's a strong word. In simpler cases you can go with the words 'Aversion', 'Disinclination'. 'I don't find them interesting and the feeling is mutual. So I'm happy for this natural disinclination/aversion'

