We can't question for reason why the moderator locked a bet, you can't imagine if everyone of us continue to make the same thing as you did, it could look more boring to others seeing all manners of these happening with the way some are posting.

Back on copy bet, some do it while some don't engage on this kind of bet, because once the bettor loses you also lose and when they win the same applies on you, this method is mostly admitted by the newbies.