You need to create a new thread. The accused needs to be guaranteed the ability to respond, and those supporting one side needs to be guaranteed the ability to post any points supporting or opposing the accused.
He is responding in the scam thread, but you can easily tell that it is a dubious project because all thread that he created are moderated and if one raises an issue, he keeps deleting it, a gambling site should be transparent and unmoderated.
I agree that anyone who deletes posts that raise concerns about their business are very suspicious. Someone needs to create a moderated thread with evidence of what is being removed and any other red flags that may exist. If anything critical of the company is removed, there will probably not be sufficient evidence to support the flag being valid.