Clee,
Actually it was me that deduced this.
See the thread in the Admin Forum called "Add Content" - for the benefit of non-mods here's a brief summary:
1) these posts started just 3 days after the PPRuNe Android and iOS mobile apps were announced.
2) many of these posts have been deleted by the "authors".
3) One user actually gives the reason for deleting as "Accidental post from app".
Senior Pilot kindly confirmed my hypothesis by posting a "blank" from an iphone app. as I don't have a smartphone / IPad.
SD