If you no longer require reservations for dynamis does this mean anyone can just jump in see if some af/currency is in the pot and lot it????
No. They're totally revamping dynamis. Do you really think they're going to keep the global treasure pool when they allow multiple different groups and people to enter at the same time? They're not turning it into a walk of echoes battle, they're turning it into an open area, with the NMs/bosses being popped instead of just up.