When publishing web maps from ArcGIS Pro (2.0.1) '_WFL', '_MIL' or '_WTL' is automatically added to the web layer name, probably to indicate if it concerns a web feature layer, a map image layer or a web tile layer (see LayerName.png).
However, this is not the case when publishing a web layer (via Share > Web Layer). The layer name + '_WFL', '_MIL' or '_WTL' does not look very nice and is not necessary as well as a user can see what type of web layer it is by looking at the 'Type' column in ' My Content' or the item details of the web layer.
