When I fetch any of those:
https://reddit.com/r/StackAdvice/top/.rss?t=year
https://old.reddit.com/r/StackAdvice/top/.rss?t=year
I can read only 10 posts while there’s 25 in rss. Full layout, feed view. Instafetch didn’t help. Other subreddits .rss has their normal 25 posts so far.