What are your settings for group posts on Facebook groups? We used to post 30-40 posts per account per day with a 600 sec delay in between. In the posts we did never send any links, just normal posts with a pic and a text. These settings worked fine but lately we experience our accounts get flagged with "suspicious activity" - some of them get free after a while, majority gets banned. So what are your settings, what works for you to gain friends and interest?