You can now watch the entire Dragon Ball and DBZ in half the time it should take, missing nothing from the original, saving on frustration.
There are gigabytes of content, it's crazy to me some people spend years on those and just give them away as torrents, doing a better job that the right holders swimming in money.
Only passionate fans or enthusiasts care enough to make sure things are preserved to an acceptable quality. Companies will always do dumb things like change aspect ratio, remove scenes, ship low quality video, audio or subtitles.
Most of my friends laugh at me for still buying physical media, but the reality is I don't trust streaming services, or IP owners in general really. There is no way my kids are growing up thinking that Han didn't shot first.