Facebook – How to Disable Wall Posts on a Facebook Event

Not a very helpful answer, but this is indeed not possible currently. It's probably for privacy reasons, same as when you're not notified of unfriendings.

Additionally (but surely less of a reason), events are often used large-scale and you'd go crazy if you get an email for each of the 300 people attending.

However, there is a slight chance that http://betterfacebook.net/ is of assistance in your case, but I never tried it myself.

You might be able to retrieve it by using the API tools. You first need to get your facebook username.

• You can set your user name or view it if you have already set it by going to http://www.facebook.com/username/

  Note: That this is not the user name you use to log in to Facebook.

You can now use the Graph API you can then retrieve your User Id.

• Browse to https://graph.facebook.com/%YOURUSERNAME% so for instance mine would be https://graph.facebook.com/boconnor

• This will display your user information along with your user id.

• Copy the the User Id - without the quotes.

• Now browse to http://developers.facebook.com/docs/reference/rest/events.get
• Paste your user id in to the uid box and click Call Method
• This will return events that you are linked to.
• Copy the relevent Event EID and browse to http://developers.facebook.com/docs/reference/rest/stream.get
• Enter the EID in to the Source_ids box and click Call Method
• This will return the stream for that event.

I haven't quite worked out a better way of getting all the posts but you can easily copy the details out in to Notepad etc. You can then search through these results for a search term that you used in your comment.

If I can find a better way to get your post on it's own I will post another answer.

Hope this helps