i think everything will be fine.
groups of 2 at 50% each is cake. if there were a title i was interested in i'd buy the share.
for hosts..having the other person activating their slot before game purchase solves many gshare issues.
this really doesn't have to be complicated.
Edit: if the same rule applies where hosts can retrieve lost shares by the secret answer/birthdate creating the account, both shares will be accessible.
yes, this means current trustworthy hosts must continue hosting. this also means all hosts ' must ' keep a log of every gshare hosted even if they decide to sell their share in the future, this way at least if something were to happen, the original host could lend their hand.
this is what i intend to do when hosting, as every host must do to save this thread.