Absolute or relative URLs?
As a developer who has worked extensively with both Drupal and Wordpress I have to say that the convenience of Drupal's relative URLs outweighs the (apparent) accuracy of Wordpress's absolute URLs.


When moving a site from dev > staging > production a Wordpress site's URLs and image references have to be replaced in the DB, this can create an absolute mess.
Rather than creating links between pages as hyperlinks a good Drupal setup uses entity reference and entity embed, so if the path or URL of a file changes the page's source is still correct.
Wordpress feeds are natively better as the URLs are natively absolute, Drupal views feeds can be made to use content filters to make links absolute.
In Drupal I like to use a module called pathologic to set absolute URLs in the rendered source, the stored source however remains free of site domain.
Performance hit of content filtering is negligible on Drupal and there are multiple layers of caching.


Hope that answers some people's questions if they arrive here.