I bet some people did. But when you look at the population as a whole, it probably looks like 5% "I can add linux-kernel to the ignored updates list," and 95% "I'm switching back to Ubuntu because it breaks less."

I don't think the problems of running a specific distro in a VM applies to general population at all ;) Only a small percentage of developers will ever face the issue, and googling a fix is faster than re-installing whole OS.

I don't think anything about running Fedora applies to the general population at all! :P

I'm sure I'm not a typical user, but I've definitely had more Linux VMs than I've had native installs. Even if it's not a majority, I don't think it's uncommon.