It's very much likely that this guy is only fulfilling the signature campaign requirement of posting in the gambling section. I don't know whether I'm correct or not but it seems he doesn't know English at all, maybe I'm wrong as I haven't checked his full post history. From the last page of his post, I can't see any post in the global section other than the posts in the gambling section. For fulfilling the requirement, he is only copying the promotional text from various gambling sites and pasting them here. I don't how how Hhampuz would evaluate them if he noticed. Maybe he noticed already as I can see Unsoldier is in the campaign for more than few weeks.

Also, I don't think these are spam. What if any authentic/responsible (official PR manager of the casino) would do this post? Would they be counted as spam? No.