The TL;DR is that she was part of creating a toxic environment within the company, shipped a product they knew was defective (Makerbot fifth generation), misled the shareholders (of Stratasys) and ultimately cost Stratasys hundreds of millions.

For the slightly longer version the class action lawsuit conatins a lot more detail: http://www.adafruit.com/pdfs/makerbot/classaction.pdf

You can also check out Glassdoor reviews: http://www.glassdoor.com/Reviews/Makerbot-Reviews-E480203.ht...

I can confirm that the Makerbot 5gen is a defective product. We have one at the office gathering dust after trying to make it work for a few months. It is beyond hope.