Hi ZuquetuPlexis,
I work here and I dont understand your changes. Why you removed the building-tags of buildings? Why you add college tags to them? There is 1 college "TH Wildau" and it is made of many buildings (some called Haus some Halle). If something is made of stone and has windows, and is made for people.
I read OSM wiki here:
https://wiki.openstreetmap.org/wiki/Key:building
1. "Haus 13" = building office,
2. Haus15 + Halle* = building=college, cite from wiki "Use amenity=college on the whole college area to represent the college as an institution." (this is meant once for the area) see wiki below.
Also here it is clearly mentioned!
https://wiki.openstreetmap.org/wiki/Tag:building%3Dcollege
As we rely on these data and have software based on official OSM-wiki, I need to change this back soon.
Please comment on this.
Kind regards, A.