I can't really blame them for being too cautious. they just want valid evidence that the gambling site you were advertising is legitimately part of planetofbets.com. there have been a lot of complaints/scam accusations that have been posted here in the forum regarding gambling phishing sites.

I don't really see the point of asking the thread to be deleted. the concern of other members was valid. as for the reputation of the gambling site(if you are worried), I don't think the comments on this thread will have a negative impact on the gambling site. anyway, there is a "report to moderator" button on the bottom right side of the first post you made. you can ask there for the post to be deleted but there is no guarantee the thread will be deleted unless the reason for deleting the thread is valid. you can also lock the thread and let it be buried by threads that is being bumped to the top.