EDIT: I now recommend use of the excellent Disqus forum instead of built-in Drupal. It automates and crowd-sources spam control, and has a host of other features. As this frustrated user put it, I want Drupal comments to work like every other blog’s comments. Who are writing their homepage URL can write “www.example.com,” or “https://www.example.com,” and they both work. Right now, Drupal throws an error if the URL doesn’t contain “https://.