I do not understand why it is necessary to spam in the topic of casino that is 9 years old. I am even not sure that the team of Clodbet check this topic because it does not answer the question of users and do not make any comments.
So that it always stay at the top. It eventually bring traffic to the site.
From one side I agree with you.
From another side Cloudbet has been already working for 9 years and have a lot of users who want to monitor reviews about casino and its news.
I did not mean it for Cloudbet but in general. If you go to fiverr then you will see there are many gig to pump bitcointalk threads and they are making good money from it, looking from their sale history of course.
ICO/IDO/NFT projects are generally their clients.