Couldn't find anything blocking it, BUT i found my link with "show original mail" !
The link is indeed in my mail, but won't show up in gmail... (and tells me i'm already logged and can't confirm it, but that another problem..)
I'll let my post here, maybe the devs will want to look at it
Edit : Oh, and i tried to resend the confirmation mail 3 times, and it was different every times : the first time, my password was in clear, second time it was ***, and last time it didn't had any of my infos (it's probably normal, but i rather write it, just in case)