I did mention the multiple-domains issue in the post. It would not have been amazing for us to remove our secondary domains, but we would have been very happy to do it if it had resolved the issue. We asked them again and again but they would not give us any detail or options apart from their 120k/year package. Note that BYOIP (which I guess they could reasonably have required to isolate us even if we only use a single domain) is available for a fraction of the cost elswhere (e.g. fastly).

Since we already left Cloudflare the only reason I finished writing this article is to warn others. I think it's still relevant to many companies regardless of what you think of casinos, since very unprofessional sales tactics (unprofessional as in business threatening) seem common place with them. Do look at the linked other posts and comments here from other people affected that don't have anything to do with casinos.

I'm happy to answer questions as well.