Cloudbet should answer this because hiring shill cannot give any positive output on them but instead people will doubt about their intentions for doing this. They are old casino so they should know the consequences of the actions towards this and if many people will find out that they hired shills for sure this could bring them more criticism from people who doubt about their reputation.
I don't think Cloudbet is behind the shilling, though. It's an old casino, they have had so many campaign in the past, and they definitely know the forum rules. This particular ring of scammers or bumping farm just replies other threads to;
1. Increase post count.
2. Make their accounts undetectable to the snoops by covering their tracks in legitimate threads.
Well that maybe that it is but as well I don't really think an old casino like cloudbet would do this since on other thoughts they don't really need this since for sure they already have solid community for running so long in the industry and might what currently we see is the owner of those bots spreading their post so that people could not notice their thread bumping done on their main assigned threads.