[Update: read here my new occupation inspired by these six months later]
Over seven years after starting to post on arcgis.com and almost five years after posting mega-datasets on GeoCloud2 via AWS, I have to seriously reconsider my investment in web data. I already mentioned my new direction two posts ago, and now stood down my AWS instance - thanks @mhoegh for his help on Mapcentia - and I will let my arcgis.com account lapse next May, five years after it was created (I already rationalised my Esri accounts, hence the two year gap with opener). Do not despair however...