So how is GigaTribe better for sharing files?

GigaTribe is a DIRECT method of sharing your data.
You do not send your data via third parties (email or community web servers, etc.). Therefore, you eliminate significant data transfer risks. More other, GigaTribe uses end-to-end encryption to make sure the data being transferred is always encrypted.
GigaTribe is one the best solutions to share files privately, especially for large files.