@danyork There is a problem for Wordpress blogs hosted on other hosting sites that the developers of the plugin are not in a position to address: many such hosting sites, including Dreamhost who host my blog, have modified html servers that break the activitypub plugin. It is often difficult to find the necessary workarounds, and the hosting companies have not been willing to work with the plugin developers.
@MartyFouts Ugh... I'm seeing similar comments from others. 🙁
That is very unfortunate. Hopefully that will change over time.