So currently you can remove the thousands separator for number fields in ArcGIS Online by configuring the Pop-up for that field. But when you edit a feature in ArcGIS Online that has this same field, the thousands separator appears and it can be confusing for the editors. I would like a way to hide the thousands separator in this Edit dialogue as well.
It would also be nice if the number formatting that you can establish in ArcGIS Desktop, at the time of the service publishing, would carry forward into ArcGIS Online. In other words, if you aren't showing the thousands separator in ArcMap for that field, can that carry through all the way to ArcGIS Online?