

People have their preferences for UI and UX. I use Aerc because I like modal editing (ie being able to write my emails in vim) and keyboard nav. Using a desktop email client rather than webmail client from a provider gives me that freedom.
Besides, I don’t actually have a webmail client I can use lol. I host my own email and host the IMAP server but I don’t host a web interface.

Donations.
I don’t find subscriptions too offensive, however any kind of restriction of the flow of information (e.g. by paywalling it) implies its enforcement. What are you going to do about people bypassing the paywall? Even if you only responded by patching whatever allowed them to bypass the paywall, you’re either going to have to let up eventually, or get into a protracted cat-and-mouse game with paywall bypassers. And you don’t want to end up on the side of the people who want to gatekeep information.
So that leaves us with the possibility of having a subscription that’s not stringently enforced—in which case it is just a recurring donation anyway.
Of course, this discussion is limited to the scope of “what would a news outlet do without changing anything about society”—but the decent news outlets do also try to change things about society. Within capitalism, things like UBI would make it much easier for free journalism to exist. And of course this problem goes away entirely with capitalism.