Internet tag fraud
Yandex Direct ads that are shown in other countries must follow that country's advertising laws as well as Yandex's ad policies.
Yandex Direct does not accept ads for services that artificially inflate indicators related to followers, friends, re-posts, views, ratings, reviews, polls, clicks, or likes (including “like” widgets on sites).
Yandex policies prohibit advertising the following:
Automated methods and apps for promoting pages in social networks
Bot and account sales (other than sales of gaming accounts)
Internet indicators manipulation as a means of earning money