te_lanus: You can like their page get the code and unlike it, that's what I do
Lifthrasil: Yes. And because you cannot 'like' or 'unlike' their page without a Facebook account, you have to make one. I think that 'Facebook-bait' is a quite justified expression here. Sure, you can delete your FB account afterwards, but whatever data you entered will stay with FB 'for evaluation purposes' forever. They don't delete your data when you delete your account.
To be fair they are far worse in their dealings and you can take advantage of it.
1. There are two options when trying to remove an account. One to
deactivate the account and the info remains. You can find this option somewhere in your account. And then there is a
delete option. Honestly the only way I found that delete option was by using google.com and get the link from there.
2. Another thing to take advantage of: you can (at least one year ago you could) create and account with any email address. They send a confirmation email. But the morons don't wait for the actual confirmation. Happened to me. Someone created an account with my email address. By the time I saw the confirmation email the other guy already had a facebook page setup, with his info, pictures, friends added and everything.
Sorry for the slight off-topic.