I was actually suggesting going the other way and being more open in the description. There are many users who may not be using a full humanoid who can improve the discussion as well as benefit from being here. For example the Robonaut developers can significantly contribute to humanoid discussions relating to the torso and dual arm dexterous manipulation despite not having a humanoid base.
Generally until there gets to be too much traffic we encourage not trying to get too fine grained. If a new user comes and gets overwhelmed by too many options or too specific options they will usually give up and either go away or post in a random place the know isn’t best but don’t have time to find the right place.