Piracy: ꜱᴀɪʟ ᴛʜᴇ ʜɪɢʜ ꜱᴇᴀꜱ

Well in your case you don't need the subscription at all, apart from some minor things the subscription won't do anything for you.

But I do all the things you're not doing. I share my server with dozens of friends/family so I need remote streaming. I can watch shows on my own server no matter where I am (at work or when visiting relatives, or even on the phone on the train). And if you streaming on the phone or with bad internet in general it might sometimes be a good idea to reduce quality to save bandwidth.

Just because the use case isn't useful for you doesn't mean it's useless for everyone. I have a family who enjoys media and I like sharing with those that I like. Encoding is necessary for people who are not physically in my house and who may be viewing on a mobile device.

You asked why anyone would want these features, I explained why I use them, and you've taken it as me trying to convince you that you needed it. Wild.