Because there was no response, I've deleted the ones that still existed here: changeset/159528681

Esta linea de frontera no tiene relation al que pertenece: way/1327416193

Ah nevermind, some folks explained on the chat: https://matrix.to/#/!SqvNXrBsvdGHYRyota:matrix.org/$17321799774944RWwAD:matrix.org?via=matrix.org&via=matrix.domainepublic.net&via=kde.org
It's pretty absurd that Belgium has a T class in the national system and then use it completely randomly, but I guess it's not wrong to copy this weirdness into OSM

Can you point out some online documentation about this system. And are there any tagging guidelines for those on the wiki?

You mean something like a waymarked walking route as this map shows? https://hiking.waymarkedtrails.org/#route?id=12848402&type=relation&map=15.0/49.9189/5.2018
(because you don't map those with just a ref on the ways but with a relation (see osm.wiki/Relation:route)

Same question for the ref on this cycleway: way/447185254/history#map=15/49.90262/5.20752

Gracias por las mejoras! Era pura casualidad que vi una torre sin mapear, y empezé a seguirlo.
Un comentario: de este zona desde el punt marcado hacia el transformador node/12353726267#map=14/-21.69699/-64.60206 no vi nada en los imagenes. Pero borraste el fixme como para indicar esta zona. Quizas por lo menos tendriamos que poner una Nota como para indicar que debe de estar mejorado.

You created a loop road around here way/447185254/history#map=15/49.90141/5.20525 with ref T801. What is this meant to represent?

Is dit al open? Aan de kant van de Degelaen is er een poort, maar die zag er toch dicht uit. En ik zag daar ook niet direct iets herkenbaar als pad vertrekken.

Oh, my bad! I overlooked that part

thanks for the fix. Why did you delete the website though? Yes, it would have been better under contact:facebook than website

Vreemd kapelletje hier: way/1288178317
Ik heb de dubbele POI weggewerkt. Het gebouw als geheel is misschien wel een kapel, maar hte deel substation is geen place of worship denk ik :)

OK thanks, fixed

I mean regular citizens walk in there to get stuff done from the police, or "is it a front office or a back office?"

Is there public services here? If not, we should delete the amenity tag and add office=government + police=offices

I verified the path is still very much closed, so I've reverted this changeset.

I've simplified this: the school is just an outline in this case, it should cover the whole site. Just like you don't "cut out" the school buildings from the site, you don't need to cut out the school playground from the site.

Thanks!
(both office nodes are at version 1 here, so I didn't see they came from deeper down)

The bridge is being re-built as an ecoduct. But it is not possible yet to cross it as far as I know

Towpaths are considered service roads, not cycleways. See osm.wiki/NL:Jaagpad
You have re-opened access to this segment: way/1305379025 for bicycles and pedestrians, but as far as I know the path will remain closed for more than a year because of the works at the Bospoort brug. Has the situation changed already?