Probably not many. But as has been said already by many different people, it is not necessary for a contest to be a "good deal" for it not to be a scam.
A contest is only a scam if it is fraudulent. For example, the prize may not be worth what it is claimed, or the chance of winning is not what was specified.
Deciding whether fraud has occurred is a question for a jury, based on the specifics. Misleading contestants may be fraudulent. However, merely failing to mention how many people are going to enter an open contest is unlikely to be fraud. After all, the organizers don't know either.
You are welcome to advise people against entering such competitions, but calling any particular contest a scam is essentially accusing the organizers of fraud, which could easily be seen as libel.
Probably not many. But as has been said already by many different people, it is not necessary for a contest to be a "good deal" for it not to be a scam.
A contest is only a scam if it is fraudulent. For example, the prize may not be worth what it is claimed, or the chance of winning is not what was specified.
Deciding whether fraud has occurred is a question for a jury, based on the specifics. Misleading contestants may be fraudulent. However, merely failing to mention how many people are going to enter an open contest is unlikely to be fraud. After all, the organizers don't know either.
You are welcome to advise people against entering such competitions, but calling any particular contest a scam is essentially accusing the organizers of fraud, which could easily be seen as libel.