The Wikimedia Research team just launched a number of surveys focused on better understanding the motivations and demographics of readers on Wikipedia. We are currently running these surveys in 13 different languages: Arabic, German, English, Spanish, Persian, French, Hebrew, Hungarian, Norwegian, Romanian, Russian, Ukrainian, Chinese…so you might see the survey request if you’re reading articles on these wikis. This is a massive effort that would not happen without some very generous volunteers who helped us to translate / adapt the survey into their language and notify their community of the survey. Major thanks to them!
Check out the meta page for more information about the surveys and the associated talk page if you are interested in running these surveys in your community: https://meta.wikimedia.org/wiki/Research:Characterizing_Wikipedia_Reader_Behaviour/Demographics_and_Wikipedia_use_cases#Reader_Surveys
If you are looking for more details on the surveys, they are tracked on Phabricator task T226273.
Isaac Johnson, Wikimedia Research