This thread is about 'composing short pieces using a theme by Luderart' and, yes, it is intended to help Luderart by providing other ways his theme could be developed.
Each piece composed belongs to each respective composer and is their own music, not Luderart's, so you're incorrect there. And at the very least, this is a compositional exercise and, thus, not a 'waste of time', as each person will hopefully add an interesting work to their portfolio.
I invite you to compose something for this challenge, Sojar.
Stopping here solely to post that rather bitter comment seems pointless to me...