I have been working with mediablam.com for just 3 weeks and asked them for early payout so I knew I would be paid and they happily paid me! I have a viral story site about celebrity gossip and only have one of their ads in my content and another one in the side bar alongside adsense and taboola. CPM rate is OK and it has boosted my site income to add them so if you run adsense or tabooladn have a similar site to mine you might want to give them ago. You can request weekly payout from them as well even though they have NET30 terms they seem to be very reasonable and flexible to pay weekly. Just add them on skype and ask them for early payout if you test them.
Yeah it's fake...Whomever owns the network just use publishers to help profit from their adsense ads and never pay.