1 new of 357 responses total.
jep, I think if the items were restored minus your responses and minus the responses of anyone else willing to have them removed (which I suspect would be most of the participants), you would find that the remaining posts would be so far out of context that they would be almost meaningless. You could also retire the items at that point which puts the liklihood that someone will accidently stumble on them at nearly zero.
You have several choices: