This seems very generous. But why the "and leave" provision?
The offer is for anyone who is not comfortable carrying the signature and/or does not think that I will pay at the end of the month. I am giving them an exit option.
In order to build up your trust as a member it might be a good idea to offer anyone involved the ten day option. If someone has trusted you once it makes a lot of sense for them to trust you again at that point, not to exit.
I took the decision in light of pawel7777's concerns. If things change again, then I may have to make a new announcement. I will as far as possible try to make them in favour of participants.
I would like to add that the offer is not that generous. Following the 10 day payout structure means 10-20% lower than the normal payout.