you can't grace/smite someone until after a certain amount of posts. i don't know what it is set at though. it was recently implemented. basically the idea is that if someone has been helpful, you click their grace. if they have been rude or non-helpful or whatever, you smite them. as far as i know, there is no way to find out who graced or smited you and for what. As far as I know, not even the admin can see that. I run smf on my site and i haven't found any options for that..if thantos sees this thread he'd be able to say for sure, as he's part of the smf devteam, or something like that.