It is generous there is no fixed period in the second chance offer, maybe it should remain open rather be just a seasonal offer. The negative side to the offer could be that some members operating accounts with nefarious intentions will be emboldened in the knowledge there is a small window of opportunity (or hope) to get the account unbanned in the event it gets banned.
How many have actually taken advantage of the opportunity since your previous post of ~17 requests by email and three unbanned accounts?
There is no end period set as of yet.
So far we've received ~17 requests by email. I've been waiting a bit to get a baseline - to avoid the risk of being too strict/lenient. Whatever the case may be, it's almost impossible to please everyone at the same time and would like to remind everyone that it's easier to ban than to unban.
Here are the unbanned users as of yet: