Why were racetams removed from the bulletproof nootropics blog post?
I purchased aniracetam, phenylracetam and noopept based off of this original blog post: https://web.archive.org/web/20170817175826/https://blog.bulletproof.com/13-nootropics-to-unlock-your-true-brain/
Curiously, I stumbled across the same post recently and the racetams were removed (the title even changed down to 11 from 13 nootropics): https://blog.bulletproof.com/13-nootropics-to-unlock-your-true-brain/
Anyone know why this was removed? Are they no longer recommended?