What is wrong with `/++ +/` comments? That's what I use for ddoc, and I _much_ prefer it to using `/** */`, because the editor doesn't  try and add those infernal asterisks at the beginning of each line. Now, that being said, this particular module typically uses `/** */`, so it may be better to use `/** */`, but in general, I favor `/++ +/`. It's _intended_ to be used with ddoc comments. There's no reason to restrict using `/+ +/` for commenting out code.