Google still has not solved the problem of spam in micro-markup despite all the efforts.
SEO specialist and webmaster trend analyst at Google John Muller gave an example of a common error in the structuring of data. He noticed specific situations when lists of elements are marked as one element. Sometimes this is done by ignorance and sometimes it is done intentionally.
Former employee of the Google Anti-Spam team Murat Yatagan commented this situation. He noted his disappointment about how the search engine handles such violations. In his opinion, the search engine is not actively fighting this type of spam.