And the best answer, in my opinion, can come from Royse777 himself or casino critique to confirm or refute this guess and remove confusion.
I also do not think that the two accounts are connected based on just an icon, although the writing style seems very similar between Royse777 and casino critique.
The similarity in the writing style is very clear between the two accounts and by reviewing their posts it can be easily seen that they both use the same signature [Cheers,]. The use of the comma is remarkable.
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Rhetorical question: Greg Maxwell and Pieter Wuille have also signed off messages to me with "Cheers", so how can we be so sure that the Casino Critique account is not operated by one of them?