That's the thing that gets me about a lot of posts (and this OP in particular). Here you have someone knowledgeable about the subject matter, but they've done little more than say "Harrumph! OSes used to be so much better! You kids don't know what you are missing!" and then not telling us what we are missing. Given that a large chunk of these OSes are consigned to the dustbin of history (either due to licensing, or lack of hardware to run them), it makes it harder to find out about them for ourselves. As the rule for writing goes, show, don't tell.