Hacker News Reader

Old CentOS has been damaging their bottom line, because it was a valid RHEL replacement.

Is there a desktop RHEL? If there is, then Fedora may be used to test software, therefore the stability will suffer.

Yes, RHEL Workstation exists. Not sure I understand your point though?

Has it though? How many companies have moved from centos to RHEL?

Companies constantly find themselves in the position to move from CentOS to RHEL.