I don't know. I think my suggestion in the book is quite brilliant, if I do say so myself. Instagram should absolutely be the middleman and broker deals between brands and Influencers. Last year, there were over 400 new agencies created to broker deals. Most of them are total frauds, started by fraudulent influencers. Brands don't know who to trust. I've worked with brands who have recommended the most ludicrous fake Influencers to join me at events. They just trust these agencies and don't have time to do the research themselves.
That said, Instagram may be just as bad as the agencies unless they go through and clean out the gunk. There are a lot of bad actors in the system now with fake numbers. No brand should trust any Influencer until they do their own deep dive. We have credit background checks, criminal background checks, etc... but there are no Influencer background checks because all the data remains a mystery behind the Instagram wall.