> It's not normal in any language to mix alphabets. This is not true. For example, my native language has suffix-based articles (there is no separate word "th

> It's not normal in any language to mix alphabets. This is not true. For example, my native language has suffix-based articles (there is no separate word "the"; instead there is a suffix attached to the noun). When including a foreign word in the middle of a sentence, some people will attach the article suffix directly to the foreign word, or at best with a hyphen (this is likely not correct "by the book", but some people write like this anyway). With your suggestion, this will show a warning when it is perfectly normal usage. Furthermore, some Asian languages like Japanese do not use spaces, so when they mix in foreign words or names written in their original script how do you tell that it's intended to be a separate word?