Lestrade is a character from Arthur Conan Doyle's Sherlock Holmes stories. I like the sound of the name, so I use it on Wikipedia.
Wiktionary has a chance to do some good in this world because it is probably accessed by many people. There are mistakes, errors, and ambiguities in English dictionaries that could be corrected here. For example, with oxymoron. There are also serious problems with language that need addressing. For example, with begging the question. After all, language is our means of communicating and is therefore of great importance.