Are you kidding? Here is the post, in full. This problem, if it is indeed a problem, can be helped with the following logic:
If User registered prior to today:
Show egg
Else:
Show regular ad
This would at least prevent new users from raiding, but it wouldn't stop existing raiders. So perhaps also add the following:
If User is not trusted:
Hide restart option
That should eliminate restarts altogether, making it difficult, but not impossible, to raid. I don't think raiding can be eliminated altogether, but this might at least make it unattractive.