So, I do some critique on the English wiki, and my process there is often copying over text from the sandbox and pasting that text with comments in a response post on the forum.
I don't think this is set up well for translation, which generally requires a much more thorough line-by-line examination.
MS Word and Google Docs have a feature where you can select specific text and comment on it, but I know that they have a variety of problems. (Google Docs isn't anonymous. Word isn't online and not everyone will have access to it or the same version.)
Does anyone know of any other tools, or have a preference among the options above?