the purpose is clear. People in the group basically have the same goals and demands, and the group name is best reflected, which can be long or short and concise.
the practicability is clear. Ambiguity is easy to occur when artistic conception is long. It's good to be faithful and elegant. If you like it, you can be
unrepeatable if you accept it. It is best not to use what others have used or are using. You can also add some special symbols to distinguish other group names.