OP, it looks like your, have to look at the rules for playing permitted gambling: Topic: One thread per site ONLY so as not to crash.

I've seen the first thread about the gambling site Predict888.com, created by: @cryptoshapper.

Topic: Predict888.com - 180% Deposit Bonus🔥Upto $10,000⭐Earn 7 BTC+🔥

So, who is @cryptoshapper and who are you, are you both representatives of the Predict888.com gambling site.
• Then why not continue the promotion on the main thread created by @cryptoshapper.
• Unless you have a competition of some sort, of course you can create a thread here: https://bitcointalk.org/index.php?board=71.0, especially for games and rounds.

if your, want to continue with this or the first thread, lock one, so users don't get confused about your gambling site.