Comment by Mediterraneo10

This website isn't really about etymology as traditionally understood, but only about the evolution of characters. Etymology would be connecting modern Chinese forms to the reconstructed Middle Chinese and Old Chinese pronunciations, and linking them to their cognates in other Sino-Tibetan languages. (This field, incidentally, has made huge strides in the last two decades, but even for linguists it is hard to keep up with the flood of scholarship, and you should take anything on an amateur enthusiast-run website with a grain of salt.)