Just to note if copying the URL you have to strip off the https:// or else it won't work (maybe people just don't copy that these days, but I ran in to that problem anyway).
I might be an outlier since I listen to most of my podcasts at home on my desktop. I subscribe to RSS feeds in Thunderbird, download and play them on VLC. Since I'm a bit of a hoarder I also like to create my own offline archive folders of favourite podcasts which is often harder to do with a dedicated app.
Oh, I wouldn't really count that since it's contained within one instance. If every time an instance does something unpopular it counts as drama, across thousands of instances there will always be drama.
Balance doesn't mean giving equal platform to every racist bigot though, there has to be a line drawn somewhere. Wikipedia doesn't accept the Mail as a source, personally I don't think it should be accepted here.
What I, at least in theory, try to do is upvote everyone I'm replying to even if I'm replying to disagree - because if I've replied then by definition it has contributed to the conversation. It gives your reply better visibility as well. It's really hard to do sometimes though.
Not for me it isn't, smartphones and tablets have always been a horrible user experience (and I'm always bewildered by stories about them replacing desktop/laptops for people), I only have a smartphone out of social pressure, making them even worse is going to drive me away further.
Very hypothetical there, like you're reaching for things that could go wrong.
I know that centralisation doesn't work because I've seen it turn the internet to shit over the last 15 years. If I had it my way we'd go back to small independent forums with no federation because they were much better communities. But in the name of progress, federation does have some advantages, but as soon as things start getting too big there should absolutely be defederation to prevent the platform from getting like Reddit.
Or just find an instance that has federation policies you agree with, you don't need to post in every single instance - maybe some defederated because there were too many people posting the same shitty memes. And who needs 40x interaction? Reddit was too big, too many people competing for attention.
How can it be abused and to what end? You can go to any (instanceurl)/instances to see what it's federated to.