I think the solution for me will be to download super rss reader, look into the code and you will have to copy, paste and edit the code into the index.php of your theme.
I would think the reason that nobody did this before is because, in this case, you will no longer writing post (which defeats the purpose of wordpress for general public, but not in our case).
In addition, a lot of rss feed do not have much content in their feed, probably just a snippet of the whole text, which will make your homepage rather content lean.
To workaround that, you will have to include a scraper to scrape the content from the feed url provided.
Thus, it's more than just a super rss reader.