I think the latter is more likely the case, they are possibly having lesser customers to scam this days since the casino is no longer as big and popular as it used to be in the past when they were still as good as new and marketing on all major platforms including this forum, and not very many persons or gamblers knew about their special kind of interests in scamming their players.
Today or this days rather, I would assume that alot of people have come to know about 1xbit and the fact that they are a scam casino, those who still from time to time; fall victim of scam to 1xbit are mostly gambling newbies who must have seen the 1xbit ad somewhere, and without doing any formal or proper research, decided to register and try the casino.
We cant totally say that 1xbit is not that big as it used to be because their have less gambler's to scam this tdays, because you have to know that if you talking about professional scammers in the cryptocurrency casino, you mentioned no other name than 1xbit as the top ranking scammers among other's, and for that you are not entirely right to say they have gone out of business, because both here in this Forum and outside the forum, reports of they scamming act is still be acknowledged, and for that we have to still be very vigilant about them, and spread the awareness of their practice to save potential victims.
We have limited to the bearest minimum the activities of 1xbits here on Bitcointalk, and that is why we think that the casino is no longer popular, and for sure no one from this forum can make the mistakes of gambling or even visiting that casinos for any reason for that, any account that creates accusations against 1xbits are all new accounts and for sure who only get to know about Bitcointalk when their have already been scammed.