When we can remove the signature?
You will need to wait till there is a final count on the number of stakes done by the bounty manager and once you get a go from them I believe you can change the signature.
BTW, congrats to the team for achieving 5m$ in a quick time frame.
Until Friday, keep it.
Why until friday?
Support wrote, that they will think to change rules (and maybe give some more time for signature campaign participants ) because of so short ICO time.
We just have to wait for announcement.
On Friday, usually counting occurs.
Well, they will not give a month yet)