I flagged it as Offtopic. But it is correct. "Learnings" is at best a pointless affectation, like saying "utilised" instead of "used". At worst, according to the OED, it's not even a word.
Continuing the OT and heedless of the downvotes: I appreciate your efforts, but they can't help themselves -- so many people love using recently invented (and redundant) words because they think it makes them sound smart and hip. Sorta like people who think JS is an amazing language and love to sell that point of view.
http://english.stackexchange.com/questions/19227/plural-of-l...
Also: http://www.merriam-webster.com/dictionary/learning No plural option.