It's a contradiction in legal terms to have a trademark that is open source and anyone can use, and legal system's resolution is to declare your trademark isn't a trademark after all.
It's a contradiction in legal terms to have a trademark that is open source and anyone can use, and legal system's resolution is to declare your trademark isn't a trademark after all.
However, upon thinking a bit more, their current strategy still makes business sense since RHEL and CentOS are silos. While the sets of users that pay for support and the ones that don't are different, if they started giving updates for free, it reduces their bargaining power in general and more so when time comes to renew support. Right now, if you stop paying for support, you cannot use RHEL any more and it won't get updates.
But not with that name.
Centos is as close as it can get.
Trademarks have nothing to do with whether something is traded for money or not.