Yes, very familiar with taginfo. The other objects were all created by a single user, spiregrain, using a different dataset, supplied by a different local authority. There are inconsistencies between the way that local authorities provide NaPTAN data. Some off these have been addressed by the UK community, but I can't see any guidance for the "~:Modification~" tags. I'll wait until I hear something from the UK public transport mapping community for some guidance before making any further changes.