Even if people use the plug in or go onto a Discord server, a lot of ARR/HW/StB S ranks get pulled almost instantly. I've acted before on pings on what is considered to be the best Discord server for hunts, and *even on my own world* I get to the area and it's dead already. Later expansion S ranks last longer, but many times they get pulled anyway before getting there.
I love hunts, but it's telling when a system should be changed when even spawners can't get to what they worked for.