Resurgence of people using third-party programs to find hunt marks?

[Vahlnir]

I mean, it's possible, but most marks are on timers that can generally be relied on. People are able to keep track of said timers either through memory or using certain sites. (FFXIVHUNT.com for example) Those sites don't help find them, just give an approximate spawn time to go by. You may not have heard or seen anyone else, but chances are if someone was looking for it they were in the general area. They then saw it and told their LS or FC. Word spreads like wildfire with those things.