So, the A & S rank hunts are a bit of a mess now, but there's a lot of threads dedicated to that so I won't go into it. But you have weekly and daily hunts to work toward your goal at your own pace! Well...
The problem with the current daily hunts is that part of it involves fates. It was one thing to camp fates for your Animus weapon (which has received abundantly negative feedback), but doing it every single day? That's just a waste of time. I'm just not going to bother.
On the other hand, B ranks now spawn every 5 seconds, so it's always up and it's easy enough to go find it and kill it. Even if someone else kills it, it will pop right back up while you're looking so you don't need to worry about missing the kill.
There's also all those kill B rank player achievements. How fast do you think that will happen if you're only killing a B rank once a week?
I would MUCH prefer to hunt down a B rank every day than to be waiting on fates. Please swap the daily and weekly hunt quests (and the rewards). This would be a much more enjoyable for me.
BONUS! You know those giant FATE monsters that show up every once in a while? Cancer, Gorgimera, and that "the eyes have it" boss? Most of the time, those monsters just sit there, no one touches them until they despawn. Makes it difficult for players leveling in that area to ever get to kill them. If they dropped some seals (maybe 50% of an A rank?) they would probably be much more popular, which would help players leveling in the area by allowing them to participate in the kills. I mean, they're big notorious monsters too, don't they deserve the attention of hunters across Eorzea?