Thread:XTinkerBellx/@comment-26445591-20150925120609/@comment-3041334-20150925171507

Here are official explanations: "This is not an actual user right, but more of an internal status flag used by Wikia. Unless otherwise noted, it grants no extra abilities or rights. It also cannot be used to filter users via Special:ListUsers."

And from here: "This is a method we're using to help us target surveys at more active users. It is nothing more than a way to tag users that are more active on Wikia than others and has no real meaning otherwise."

"Well, not just surveys - but it's intended a way for us to learn more about how more active users interact with the site. It's rather experimental (hence no special announcement), subject to change, and confers no special benefits. We might have more to say on this in the coming weeks, but it's really dependent on how well it works. I wouldn't put much stock in who is or isn't tagged right now."