User blog comment:DaNASCAT/Technical Update: September 9, 2015/@comment-25209034-20150910200108/@comment--20150910210924

See the update blog before this one.

"We are currently rebuilding the mobile version of the editor to work with the new serving methods, so currently editing of articles is only available in "Full Site" mode. Commenting on mobile will also be unavailable for a while, but can still be accessed by viewing the full site."