Oh of course, you don't let players pin themselves. You don't let them do quests, and they can't attack until 50% troops. But of course, you never liked spies did you, devs? They were always the loophole, the problem that you never accounted for. That's why you're punishing them. No support.
EDIT: can you be pinned with pure spy with 0 gold out, but still be able to hit? That seems the only way to strategise as a pure spy, if these come into the game