[KaiserPro]

because meta sucks at software, documentation and making sure end user products work in a supported way.

Offering reliable IaaS is super hard and capital intensive. Its also not profitable if you are perceived as shit.

[logicchains]

>because meta sucks at software

Google started a cloud and their user-facing software is atrocious. Compared e.g. Angular to React, Tensorflow to Pytorch.

[negus]

Why would you prefer Pytorch to Tensorflow/Keras?

[chessgecko]

Tensorflow and keras have gotten better, but pytorch historically had better flexibility than keras and was much easier to debug/develop in than tensorflow.