Comment by pjmlp
I was already enjoying VMware Workstation and Virtual Box, depending on private vs corporate laptop, since returning to Windows as main on with Windows 7.
What WSL has brought is that now it is one thing less to install.
However what got me started with Linux back in 1995, was the not so great support of POSIX in Windows NT.
Had Microsoft kept selling Xenix, or done Windows NT POSIX subsystem property, Linux would most likely never taken off.
Quite ironic given how Bill Gates used to talk about Xenix taking over.
Microsoft gave up on Xenix/Unix when AT&T took interest in a commercial Unix and exerting influence/control over the direction of Unix.
Microsoft didn't see a profitable future in following AT&T.