He is definitely suggesting a raffle type as method on choosing winner just using more transparent tool to do that. He is pertaining to https://bitcoindata.science/giveaway-manager/ which created by bitmover if I’m not mistaken. This tool is what LM use on one of his contest that in a form of raffle.

I’m skeptical that casino will use this kind of tool since it’s very hard to extract data from social media entry manually and insert it to the tool.