Auto-blog based on Facebook Graph API, scrape from a non-public Facebook group

Does it make sense to create an auto-blog based on Facebook Graph API, scrape from a non-public Facebook group that doesn't belong to us?
How does this look from the legal side? If I anonymize the authors like in Excel (unknown or anonymous users, that is, under pseudonyms), will it be ok?
Can I get a ban from google for such actions?

its worth a try, just depends how you structure the site so it makes sense, unless you just cloak it.
as for legal issues, i'm not a lawyer but i don't think posts in a fb group are copyrighted.

don't worry about the legal side, it's not worth the hassle and most likely won't be found out about it,
as for content and google, it could work if it's good content, pretty much for some Q&A websites,
won't face any actual problem as the content is fully unique to google