I ended picking Miru (from another comment) up to watch anime, so I won’t automatise the system - I’ll use the RSS just to warn me when there are new episodes. That said, this extension (to allow transmission to download from rss) plus this site (to sift the RSS feed, so you don’t download e.g. individual episodes alongside batches) could help.
Piracy is morally justified when 1 is a more pressing matter than 2. As such, it’s justified in situations like this: