They obviously suck people in.
As the letter said you had to pick 200 names from the phone book (and mine was obviously one of them), I can guarantee this is how the conversation went in their neck of the caravan park:
Moron who responds to chain letters: Oh yeah, I know. I'm just gonna pick people's last names from the phone book who have last names of cool stuff that I like, heh, heh.
De-facto of moron: [high-pitched] oh yeah, look for last names like Woodstock, Bourbon, Jack, Daniels, Southern, Comfort, Ford, Porno...
MWRTCL: heh, heh - that's a good one. Whaddya reckon we will buy when we win all this money?
D-FOM: Oh yeah, heaps of stuff. We could open a shop. Tell me ex to get stuffed.
MWRTCL: I'm gonna go to the post office and steal a phone book tomorra so we can get people's addresses. Then I will ask me cousin to photocopy this letter 200 times so we don't have to pay for the photocopying - cause she's got a posh job in a office. I'm not tellin' her why though, cause then she will be after the money.
D-FOM: oh yeah, good one - tell her to get stuffed too.
I obviously have an over-active imagination.
However, I could guarantee this story would be marginally true by conducting one little test. nb contacted his olds and asked if they got one. Yup, you guessed it - they sure did.
What about poor little Mr & Mrs Comfort? I hope they don't fall for it.