One move from Microsoft that really disappointed me recently was to prioritize advertisement over user privacy, for example in Windows 10. I read big chunks of the terms and conditions myself and was horrified.

There are many articles covering this, for instance: https://www.eff.org/deeplinks/2016/08/windows-10-microsoft-b...

Investor != owner. Very different in terms of control and influence even if they are the largest investor. It'll be the Google VC and not corporate.

How were you burned by google wave? It was never a finished product and for the longest time (probably forever before being canceled) was a beta product.

You still have the source code. If big Google tries to take over you can always fork