It would be nice if there was a site that indexed RSS feeds that contain whole articles, not just ledes and snippets meant to get you to click into ad-riddled articles.
I agree, but I would also expect to only receive text data and not images (or very highly compressed images). The other part of keeping the bandwidth cost of an RSS feed down is keeping a smaller number of articles in "rotation".
EDIT: I just pulled their RSS feed - 50 articles currently in rotation! 32.42kB according to FireFox of just snippets of text and links!
Seems to have links to, and 1-sentence descriptions of, all of their articles.
This isn't very useful if you want your RSS reader to pull down articles for you to read while you're offline. For that to work, you want the feed itself to have the full text of every article embedded inside it.
For some reason Firefox is only showing the <summary> contents when you click that link, but it's all in there and it shows the full article in ttrss for me.