Audit the use of Schema.org markup
There have been changes to the Schema.org vocabulary since Schema markup was added to Beans.
WebPage has gotten "stricter" and Google's Schema validator is showing errors and warnings (I only tested blog posts and blog archives)
It would also be interesting to explore the possibility of removing the "hard-coded" Schema from our templates and moving to JSON-LD instead.
+1 for moving to JSON-LD
@christophherr Can you take this audit on please? Let's include it in the v1.6 release. It'll be good to have a consistent approach.
Errors/warnings shown in the structured markup testing tool:

We could
Change our post interface to add a publisher field and show a warning/error message when a post is being saved without image or publisher.
Change the Schema.org markup in Beans.
The quick fix would be to remove the 'blogPosting' specific attributes from https://github.com/Getbeans/Beans/blob/development/lib/templates/structure/loop.php#L41
and change articleBody to text in https://github.com/Getbeans/Beans/blob/development/lib/templates/structure/loop.php#L66
Adding this code snippet to your child theme's functions.php simulates that:
beans_replace_attribute( 'beans_post', 'itemtype', 'https://schema.org/BlogPosting', 'https://schema.org/CreativeWork' );
beans_remove_attribute( 'beans_post', 'itemprop' );
beans_replace_attribute( 'beans_post_body', 'itemprop', 'articleBody', 'text' );
A change like this has to be tested really well. We don't want to negatively impact the search result output of existing websites.
Explore alternatives
Beans is adding Schema.org related markup to 23 hooks.
While not necessarily all/a lot of the default output would have to be changed for different Schema.org vocabularies (e.g. products, event, localbusiness, restaurant...), it's not very intuitive or flexible. I am also not sure how well Beans is integrating with existing Schema plugins.
- Moving to JSON-LD might be an alternative. This is how SEO plugins (e.g. Yoast) and Schema plugins add structured data. For anybody interested in exploring JSON-LD, here is a plugin to remove the Beans Schema output, so we don't have to rip apart Beans to start testing.
- Just so it has been mentioned, we could also remove Schema.org markup completely and recommend using dedicated Schema plugins.
For the record, I think, until we decide on an overall Schema strategy, we should
remove the 'blogPosting' specific attributes from https://github.com/Getbeans/Beans/blob/development/lib/templates/structure/loop.php#L41 and change articleBody to text in https://github.com/Getbeans/Beans/blob/development/lib/templates/structure/loop.php#L66
for the next/1.6 release.