[dagaci]

Some error corrections: ebay bought skype in 2005 for 2.6B (1 million concurrent user), and Microsoft bought them in 2011 for 8.5B (22 million concurrent users) with 74 million concurrent users reported in 2013 falling to apparently 30 million now...

https://www.statista.com/chart/1417/skype-usage/

What is your criteria for stewardship ?

[varjag]

Microsoft had essentially left it for dead shortly after the acquisition. There were multiple assassination attempts from Lyncs-become-Skype-for-Business-become-Teams department and I can only assume noone to fend for the foster child.

Skype under Microsoft had only seen sidelining and feature & platform regress, while it was a thriving product during eBay ownership. It may not be obvious from the bar graphs but it was apparent when one used the product.