It'is highly recommended to data hoard.
Everyone needs a collection. There's an influx of new cool content and streaming features, but there is also much content removed from the site, so if you have favourites its safer download so you always have the peace of mind of knowing you can access the scene.
Let's be help[ful and answer the OP question rather than push the don't download agenda.
Data hoarding does have a toll on ecology and economy, so make sure you are watching what you download