Being spammed with every single thing a person posts, on any topic, any hour of the day, is a tech problem. No matter how accepting I am, that's a huge waste of time.

I would argue that's just a problem with how you spend your time. Most of this Twitter stuff IS a waste of time. It's not productive let's face it.

If I follow someone for a hobby, and I can have a computer filter out the posts that aren't relevant to that hobby, then it stops being a waste of time* and I'm done much sooner.

*(Unless you want to be unreasonably judgemental about hobbies. But even then, it would probably cut 80-90% of the waste and increase the enjoyment.)