question about naming objects

i started my biggest project yet and part of it is giong to be a stair case with well over a hundred individual stairs. what I was wondering (because one of my other files got VERY messed up from messed up naming of objects and materials) is how this object is named.
I see there is an OB space that goes kinda with how I would like it names but then what is the ME?

The ME part is the mesh datablock, as opposed to the object. It holds data about the actual vertices, etc .

so should i rename that to Stair so blender keeps renaming them accoringly or is it ok the awy it is