I think it's fine to download those things. I still do sometimes. I just don't do anything to preserve them and I'm not buying a bunch of hard drives just to en

I think it's fine to download those things. I still do sometimes. I just don't do anything to preserve them and I'm not buying a bunch of hard drives just to ensure that I can hold onto every anime I've ever watched on disk just in case I want to watch something again. If it's something that I do find myself going back to more than once, then I will try to keep it. Digital hoarders are great to have. The hoarders are the ones that often have been the source of otherwise lost media. I just don't think it's all that different from hoarding of physical items. As someone whose natural inclination is to hoard, I've taken measures to prevent that (both in the physical and digital realm).