By planting secret messages on a non active members profile page such as this one, these messages can go undetected. Therefore you can either use this url in a link or you make a code such as 1102-09-06 37 which would mean 11th page of the members list, the user joined 2-9-06 and has 37 posts of course you could come up with your own cryptic solution. The only flaws I can think of with this are- 1-The user comes back and replies WTF therefore leaving and open link on your vm to their profile. 2- The user gets a email that they got a vm which I don't think is possible. 3- By chance or luck or sheer will some one just so happens to go through the thousands of members profile pages and finds the messages. 4- Or if admin or mods get notifications of new vms on profiles which I highly doubt
