The Lessons Not Learned.

[Midareyukki]

You couldnt be anymore wrong with Bozja and DR. Sure you cant rely on DF anymore for DR queuing but there's always and I mean...ALWAYS people needing to run Bozja for prog, character leveling, or farming for glam pieces and with DR being tied to ShB relics and Bozja this is something that you can reliably create a PF for and you'll get people willing to jump in with you. It may take a little while for sure but to call it dead is extremely stupid. I say this because I literally just right now on Coeurl hopped into Bozja wanting to level a job and there's people running around shouting for groups in Zadnor.

When there's unique rewards tied to a piece of content, people will find a way to still do it, and thats's seriously the only problem we have with Variant/Criterion dungeons and I bet the devs are already working on introducing more lasting rewards to have this content be reliable for people to create groups for.

Am on Zodiark, Castrum and Dalriada are pretty active to this day, even if you naturally won't cap the instance anymore (not that you need to to clear them). Delubrum not so much, the queues are actually fairly long.

Do people enter old Raids/Dungeons (unrelated to roulettes) again, anyway? Yes and no. Unless you work on your next relic, there is no reason to. You simply don't get any meaningful token or reward, because you got them ALL in your previous runs. It is a dead content in a sense, once people got their desired item, they will not run it again.

Not all the time, but I do queue for Dun Scaith and the Ivalice Raids on my own. I don't need anything from them, I just really liked those and I wanted to experience them again. Plus, sometimes sprouts complained on NN that the queues for those things were long, so :T idk, maybe I'm helping with numbers?
I just really like Diabolos ok?
.-. and thunder god

Last time I did this was 2 weeks ago, actually. And sometimes I run "older" dungeons for glams. I'm thinking of running Eureka for a bit for the elemental armor, since I only now had an active interest in it, but that'll depend on my mood way too much.

If what you're asking about is stuff like old Savages and stuff... most people just unsynch those anyway, partly because unsynching is faster, and partly because skill synching sucks. I do sometimes see PF people making groups to farm them for glamour and mounts, but I assume most people do it with friends. As for Baldesion Arsenal, I hear there's a discord for runs of it that's still somewhat active.

Like, yeah, there's some notoriously "dead in the water" content, but people do still run it, if anything just because they enjoy it. If you want those areas to remain relevant and such, then you'd need an incentive or a proper model to keep them alive. Worst that can happen is what they did with the Bozja Relics, having you run alliance raids ad nauseam. Or just get the stuff off of FATEs.