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From what I noticed in recent weeks, the activity of this type of account has decreased significantly. This may mean that 1xbit security team has improved the effectiveness of catching them and it is no longer profitable for them. We can also notice that the complaints that appeared were considered positively. I hope that the situation from now will only improve.
I see a lot of assumptions and opinions on your part. You assume, for instance, that most complaints are made by cheaters, although there is no evidence of that and 1xBit has never revealed such information. Secondly, you claim that most of the complaints involve live betting on tennis or table tennis despite the fact that there is no such information either. Most complaints only contain the user ID and the amount scammed. Therefore, unless you work for their security department, you can't have that information.