A new version of MapComplete is out - version 0.40
And it has a _huge_ update: it now shows the number of relevant POI in a region, giving the map a non-empty feel when zooming out - and it loads the data directly.
It is also really cool to discover outliers and isolated hamlets...
This required a _big_ server to calculate all those number; @pietervdvn was very lucky and got one donated which had the required amount of RAM (>80GB) and HDD on board, transported ecologically...