There are multiple ways to conduct statistical analysis on "anonymous" texts, including: [2] [3] Keystroke fingerprinting, for example in conjunction with Javascript. Stylistic flourishes. Abbreviations. Spelling preferences and misspellings. Language preferences. Word frequency. Number of unique words. Regional linguistic preferences in slang, idioms and so on. Sentence/phrasing patterns. Word co-location (pairs). Use of formal/informal language. Function words. Vocabulary usage and lexical density. Character count with whitespace. Average sentence length. Average syllables per word. Synonym choice. Expressive elements like colors, layout, fonts, graphics, emotions and so on. Analysis of g