How are you growing the accounts so fast? I started an account last week after reading Austen's awesome book (http://austenallred.com/user-acquisition/book/chapter/instag...),but only grow my following around 30 per day as opposed to 10k. Also I haven't tested out any bots yet.
Once you have accounts with followings they can support each other, RT each other's posts, get reach that way. I think that's how any in-house influencer marketing companies got started, they built Facebook like pages over the last decade then just used them to make new pages. Moviepilot did this also, apparently spending a year building the pages before they built the website! That is brilliant forward thinking. Regarding Insta/Twitter growth from zero, Austin's advice seems pretty solid?
Also would love to get your quick feedback on my niche account. I have some great ideas to monetize it once it gets to some scale that I can share too. Email is gold.sethj@gmail.com