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They are just having some fun and they don't want to reveal their identities, choosing crypto related casinos gives them tha privilege but if the house as for KYC the very chance that they'll away from the site and find new place to continue their activities.
That is exactly what happened recently with Roobet casino. They have been one of my favorite crypto casinos so far, but they have recently implemented mandatory KYC verification.
After the closure of YOLOdice, this is the second casino that has disappointed me this year, forcing me to search for a new gambling platform.