I am reporting https://www.drupal.org/documentation/modules/block_content to moderators because:
Just to reiterate, assuming you are seeing this page as
this is the page I would have chosen to delete,
and left https://www.drupal.org/node/2112591 alone,
but the fact that this page 2349899 is generating an ‘alias’ url,
then maybe it it the one you want to keep.
This page definitely does not belong under ‘contrib’, however.