See http://cweiske.de/tagebuch/ublock-element-containing.htm

BoingBoing.net
--------------
Store "news"::

    ##:xpath(//div[contains(@class,"morefeatures") and .//a[@href="https://boingboing.net/author/boingboingstore"]])
    ##:xpath(//div[contains(@class,"feature") and .//a[@href="https://boingboing.net/author/boingboingstore"]])

heise.de
--------
Heise Plus-Articles::

    ##:xpath(//img[@src="/icons/svg/logos/svg/heise_plus_blue.svg"]):upward(article)


spiegel.de
----------
Spiegel Plus-Artikel::

    ##span[data-contains-flags="plus-paid"]:upward(article)
    ##span[data-flag-name="plus-paid"]:upward(article)
    ##span[data-contains-flags="plus-paid"]:upward(a)
    ##[data-area="block>adblock"]