[lmmlzxx]

Never revealing personal information is harder than it seems though, as we often give away deanonymizing information unconsciously e.g. in the quirks of our writing style. The study of deanonymizing an author based on these tendencies is called stylometry, and was used for instance in another case about a child abuse ring that was posted to HN last week. One of the group's members consistently used the atypical greeting "hiyas", which was sufficient to give investigators a lead on his IRL identity. Stylometric tendencies can be much more subtle though, like putting two spaces or one after a period, capitalizing proper nouns, using an oxford comma, persistent misspellings, idiosyncratic phrases revealed by n-gram analysis, etc.