Hey Simon,
The post is now in the ArcGIS Online space, so no need to move it or delete it.
Here is our documentation about how we count views for web maps and hosted feature services which includes how the views are calculated for different item types.
Item details—ArcGIS Online Help | ArcGIS
Monitor usage
For item owners and administrators, the Usage tab provides usage details about an item that help you gauge its popularity. Usage details show how many times the item has been used for the time period you select. Historical usage information is available for the past year. Depending on the item type, usage details can include the number of views, requests, or downloads, and the average number of views, requests, or downloads per day.
Views refers to the number of times the item has been viewed or opened. For maps, scenes, nonhosted layers, and web apps, the view count is increased by one when you open the item page or open the item in Map Viewer. For example, if you opened the item page for a map image layer and clicked Open in Map Viewer, the count would increase by two. For other items such as mobile apps, KML, and so on, the view count is increased by one when you open the item; the count does not increase when you open the item details page.
For hosted web layers (feature, tile, and scene), the number of requests is provided instead of views. Requests refers to the number of times a request is made for the data within the layer. For example, someone might open an app that contains a hosted feature layer. Opening the app counts as one view for the application, but multiple requests may be necessary to draw all the features in the hosted layer and are counted as such.