The eternal dilemma is which AML checker is the most reliable.

As far as I understand from experience, a 30% risk score is still not critical. That is, until AML tools recognise stolen coins or those from one of the known hacks. Everything else that brings bad points (mixers, unlicensed exchanges) when calculating the AML score, no serious service pays much attention to it.

Thanks for this reply and additional confirmation that you are thinking of your users and don't want to create any problems for them with the funds received.
It seems to me that you invest a lot in defense against DDOS attacks and in the verification of transactions, which speaks of the quality and professionalism of the service you provide to your users.
Of course, on top of that, you help all users with protecting their privacy and anonymity, which is also important.
Way to go! 

Well, if we get 30% or more AML coins in our personal wallet and not on the exchanges, thats no risk, right ? The risk is only when you get those high AML coins to be deposited directly to the exchanges. Is it right?

So if we get high risk AML coins in our Wallet and then we transfer those coins to the exchanges, the AML tag with those coins remain with them ? If the exchange take no action, where does those AML coins go ? Once you withdraw coins from exchanges, you will receive completely different coins, not linked to the previously deposited coins.

Is there any case like that? I wonder how they'll handle that if the customer lives in a different country.

Speaking of flagged coins, it's also weird that exchanges don't apply stricter rules like tracking the previous 5 txs of a deposit to decide whether that's suspicious or not. At least in my local exchanges, they flag deposit from known mixer addresses quite fast, but if the user withdraw those coins to their own address then send it to them, they won't flag them at all. Not sure if they'll change things in the near future or it's intended.

I think rules like this are only applicable to seriously tainted coins like hacked coins which is been monitored, for example the stolen funds ftom an exchange is actually traced down to more than a just a recipient address, this is mostly because the victim themselves actually inform the exchange directly. For almost normal transactions like from Mixers they just check the sender only not how it got to the sender. That’s why just check the last transaction only. I don’t think this will change except there is better analytics tools that they get later, because for now it will be just too much for them most especially if the exchange is large one that get high volume or number of transactions daily

Yes, the AML score will get lower if you add clean coins to the same address. Lets say someone has $100 worth of coins that have aml score of 50 and if in the same wallet $1000 worth of coins with 0-5 AML score are added the both the coins with high AML and with low AML will be in same wallet. One might needed to move all the coins to another wallet for extra safety and then to exchanges. That way I guess there won't be any issues from exchange's end.

After such a transaction with dirty bitcoins, both addresses will have an increased AML risk, and transfers from them to the crypto exchange may be blocked.

I don't understand the point of this comparison if the decision to block is made by a centralized crypto exchange.

We have updated the information on your exchange page at KycNotList.

https://kycnotlist.com/en/exchanger/sageswap

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I guess that is very likely to happen as well.

This is a reason why I don't use some addresses anymore... like the ones that I received from campaigns of services that are no longer active, which I prefer not to mention here.

Yes, most probably because the new coins will somehow get mixed with the old dirty coins and thus the overall score of coins will have high AML than 25%. The coins with low AML will somehow reduce to AML score of high AML coins but the overall score will get increased that's what's most possible. However, practical tests are needed to confirm such a thing.