Hi, welcome to OSM.
These nodes don't have any common tag to describe what they are. In OSM we have to use a well-defined set of tags to allow all software and all other users to understand what they mean. 
If you look at the tags without knowing what it is and without reading the changeset comment, there is no way to understand what these objects are. Here's the relevant Wiki page describing how bicycle parking is mapped:
https://wiki.openstreetmap.org/wiki/Tag:amenity=bicycle_parking

248 points sounds like you're copying them from somewhere. What is the source, and is its license compatible with OSM? For importing data, there is a dedicated set of rules: 
https://wiki.openstreetmap.org/wiki/Import/Guidelines