I am a member now does that change things.?I guess you are not a member of these groups? As usual you would need access to the groups to scrape them. This would only be possible by sneak in which is not blackhat but hacking. Therefore this might be the wrong place for this kind of questions.
Facebook groups I have joined them .what you exactly want to scrape?
Email addresses.But what kind of data. The title of the group, the username of the others, every entrie?
both.Are these Addresses postet in messages or do you want the address of the users?
And is it possible to use a picture to trace an individual on Facebook?Ok there were different discussions concerning Email of FB users and a while ago you could use a little workaround by using „forget password“ function as they returned the mail addresses where they would send the renew link. But it is closed. So for now there is no known solution to get the mail from a user.
Concerning Emails listet whitin messages it is possible. You should try to get a custom made bot to have control about the speed and bahavior of the bot. Basically not complicated but if the bot is to aggressive your account could be banned
I am gonna bump this thread cause i am interested to see if this is possible or how this works.. I would like to do the same, i would like to the email list of users in groups that i am in so that i can send mail to get them to like my page...
There is a service in the marektplace that can grab those emails.