So I was on a personal mission to beat every mainline FF game a couple years ago. For 14 I considered “beat” to mean be up to date with the story (which I was doing anyway), and for 11 I wanted to at least complete the story that the game shipped with simply because I didn’t want to sink TOO much time into it.
Anyway, you are able to get from 1-50 and kill the Shadowlord on your own now. I can attest to that. And after doing that I have now successfully finished FF1-16!
On my server there were still plenty of people. I don’t know how many are gold bot farmers. But there was still lots of characters running around.