Maybe place a note for Polyglot. That is his territory.

The trees there.

There is much to read about crossings and I am not going to specialise in it. Are you sure that place is meant to be a crossing in the OSM sense ? People on the service road would be advised to cross it there, but there are many obstacles there.
I'll also give coblestones to the service road. There should be grades given to coblestones. These give no bumps.
I'll also measure the inclination of the service road.
I think it is better not to detail the steps in Brussels too much at this moment.

Would crossing=unmarked not be better here ?
https://www.mapillary.com/app/?pKey=KqDVXDI1HFR15cnHjIIxUQ&lat=50.848139348026166&lng=4.359861632659461&z=17&focus=photo
crossing=*?uselang=en

I saw the Quinten Matsijsput in the Humanitarian layer. It is not a water well and probably never has been a well there.

Newspaper article not available any more. Pulhof has been sold to a private person. So there is probably no more drinking water. I did not survey.

Bicycle parkings without capacity are of little use.

I think it does not exist any more. I will delete the bicycle_parking tomorrow.

I prefer not to map these unsafe bicycle stands.

I did not find "summer" on the osm wiki, so I made note for it.

Done,
but have you seen the pictures ?
It is clearly one object.
So the renderer becomes smart or people think about drinking from a free shower.

Sorry, wrong description, must be : De Brouckère drinking water wikimedia picture

So you won't mind if I delete the name. It is a Bayard Lyon model, but I don't find it in the catalogue. It is common in playgrounds as you have to turn it to work.
Brussel Leefmilieu operates those playgrounds, but I don't know if they are responsible for the taps.
I would like a unique identifier for each tap to avoid confusion as it is the case now.

I'll verify one of these days. Where do you get the name from ?

Are you sure of the drinking water amenity on the Houwaertplein. What is your source ?
Also have a look at the notes I placed on Brussels.

And of course, I do not want to add a poi that does not work.

Yes, I always do while taking the picture. Just as http://www.mapillary.com/map/im/RqN3cUOZiUDCfvaMRSTadg/photo
Of which I have a working photo during summer. There is no tag for winter closure !
I found the quality of the note not good enough to do the extra effort. It should have said "somewhere in the Versailleslaan ..."

I do not find "Kapelvoetweg" on Geopunt.
So at this moment people could get trapped in this peninsula if they follow OSM ?

No idea, I am just a beginner.
I am even not sure what that structure is.
And I would not call that a footpath. It is just a place to service the construction.
Maybe ask it on a forum. Next time I will take those pictures in HDRI.
My OSM change was probably wrong.

That is not a bridge but a water lock ? Only authorised personnel with the key for the gate can pass it if they dare.
https://www.mapillary.com/map/im/RWMweNExQt7pZrAzujULZw/photo