Hi there.

Gent Dampoort is the public name of all stops on the same spot, which is how PT operators present their stop to the public, e.g. on the network map or on outer displays of buses.

Each bus stop node in OSM contains details about how to identify them, the stop code (ref:De_Lijn) and the technical name (name:De_Lijn).  This is where you will find the "Gent Dampoort B4" text string.  Apps can easily take this string if they need to show all those details.  The "Transport Map" layer on the osm.org website also displays local details for whoever needs them.

You can also have a look at the discussion we had for the very same topic a few days ago.
https://www.openstreetmap.org/changeset/145411185