I tried out the 1.0 version of Drupal CMS and it has some room for improvement as they say. For those who weren't aware, "Drupal CMS" is a Drupal distribution that comes with preinstalled modules, recipes for creating different types of sites, and other enhancements designed to make it more friendly for non-developers. Recipes are a yml file plus maybe code, and they're similar to what the Features module produced for D7 and before.
See the issue someone else filed here. If you use a bad date format, Drupal just keeps on requesting that non-existent date format from the database. If you use a bad format 10 times, that adds 10 queries to the page.
I reviewed their patch and it looks OK. But, I opined:
You know the old joke about a guy who goes to his doctor and says "it hurts when I do this" and the doctor responds "so, don't do that"?
Two examples of "so, don't do that" from Drupal are "Unable to add content to a content type named 'type'" (link) and "Do not require a 'title' field" (link).
I left comments at both links.