When should I be concerned whether or not a provider comes with a newsreader?
You shouldn’t. There are enough free and working newsreaders for everyone. Usenet protocol is not exactly cutting edge technology.
Is a newsreader the same thing as an indexer?
No, tbh I’d be a little concerned if it did IMO
The provider is kinda like the ISP you connect to for the internet
Your newsreader is like your web browser
You can choose each independently
Got it, so if I were to subscribe to a provider, and use a couple of other indexers, and plug those into the sabnzb, I would have zero use for a newsreader?
Unless you actually wanted to browse the (mostly dead these days) forum side of Usenet, then no, sabnzb is operating as your newsreader in this scenario
Awesome. Thanks dude
Sabnzbd is your newsreader in that setup.