Do not strip feed/entry/category nodes of Atom RSS node.

Famous Q&A network Stackexchange.com publishes many RSS feeds.

Their entries contain tag "category" with very important information (tags of a question stored in this entry).

<entry>
    <id>http://apple.stackexchange.com/questions/106036/what-under-documented-features-have-you-stumbled-upon-in-mavericks</id>
    <title type="text">What un(der)-documented features have you stumbled upon in Mavericks? &#8211; apple.stackexchange.com</title>
    <category scheme="http://apple.stackexchange.com/feeds/tags" term="osx" />
    <category scheme="http://apple.stackexchange.com/feeds/tags" term="hidden-features" />
    <category scheme="http://apple.stackexchange.com/feeds/tags" term="mavericks" />
</entry>

Unfortunately this information is stripped from API (only TOR categories are left). TOR clients can't therefore use this information and are significantly less useful then they could be.