I think I have figured out why some folks are no longer getting the tab to hire workers to earn up to 30 Farm Cash. First, it says to earn '
up to 30' FC. Between my friends and myself, I have accepted the hire request and worked on their farms at least 10 times which would mean I have '
earned' my 30 Farm Cash. Which would also explain why the requests I am getting from my new friends just starting out are duds or ghost requests. If this scenario is true, then that would explain why you would no longer see the offer to hire out to earn the Farm Cash nor in the gift section to earn the Farm Cash.
If this scenario is true again, if we have new friends now playing and all their neighbours have already earned their 30 Farm Cash, then they will have to find other friends to hire out. Hence the pyramid begets the pyramid, if such a statement could be said.

LOL