Google removed K-9 Mail from the Play store with zero notice because the description of the app included alternate spellings of the app name we'd included to work around how bad Play's search is.
@obra I had Google Chrome extension that read bookmarks from Google Bookmarks and showed them as a tree. It's called "Bookmark tree to use with Google Bookmarks™". It was there like 10 years and recently it was taken down for misleading name.
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