, fanbaby wrote

...these developers/managers are holding it wrong...

...the rug should be pulled from under them....

There are a lot of big organisations with big internal websites that were made in the early 00s. Indeed governments (and there are lots of them) that routinely put out invitations to tender that specifically mention that the site must work under IE6/XP but no mention of other browsers.

You can just pull the rug out from under them, but let's not forget that Microsoft makes most of its money from corporate customers, not from end-users. Pissing your customers off isn't a good way of making money.