Neat! I added the top level RSS [1] to The Old Reader [2] and it pulled up just fine (validation), the title shows up as "xfer" by default but otherwise works fine for this reader.

[1] http://freshcode.club/projects.rss

[2] https://theoldreader.com

https://validator.w3.org/feed/check.cgi?url=http%3A%2F%2Ffre... shows there are a few errors.

NewsBlur doesn't complain that anything is wrong, but it will skip specific items that do not validate - so it all looks dandy, but it misses updates.