Facebook says this feature is now rolled out to 100% of group admins globally. A Facebook spokesperson told TechCrunch:

“Screening new membership requests requires time and legwork for admins – particularly for groups built around focused passions or purpose. For these groups, admins typically have specific criteria they require before admitting new members. Establishing these open-ended questions enables them to more quickly review and approve member requests; in turn, people seeking communities of support or shared interest can more quickly connect with others.”

Yea, Like I said before… a job interview… if you don’t meet up with the requirements, your request will not be accepted.

But why is Facebook doing this?

Well, back in February, Zuckerberg promised to build the online community by improving admin tools for Facebook Groups. He wrote that “One of the things that we’ve seen in online communities, but also including offline communities, is that having an engaged and talented leader is one of the key things for making a strong community … but right now our Groups product hasn’t really been built to facilitate the leaders.

read more on https://itedgenews.ng/2017/05/15/facebook-groups-can-now-screen-new-members-with-a-questionnaire/