This is not a scam accussation.
Kucoin's policy is pretty clear about KYC, which you have agreed to when registering an account:
2.3. KuCoin maintains an anti-money laundering, countering the financing of terrorism and know your customer compliance policy (the “AML/CFT Policy”). Pursuant to such policy, KuCoin may, in its discretion, require identity verification and go through other screening procedures with respect to you or transactions associated with your KuCoin Account. You agree and undertake to provide KuCoin with any and all information and documents that KuCoin may from time to time request or require for the purposes of these Terms or in connection with your KuCoin Account (including, but not limited to, your name, address, telephone number, email address, date of birth, government-issued identification number, photograph of your government-issued identity card or document or other photographic proof of your identity, and information regarding your Digital Token Account). KuCoin will have no liability or responsibility for any permanent or temporary inability to access or use any Services as a result of any identity verification or other screening procedures.
This doesn't mean that KYC is mandatory but they can require you to verify your identity in certain cases, so technically their support wasn't wrong when saying that KYC isn't mandatory. Trying to sell over $11,000 worth of a privacy coin is a valid reason for them to require identity verification. Kucoin has no choice but to follow these AML/CFT policies in order to remain compliant.
It is very much a scam accusation because there are many holes not only in the multiple policies I posted links to from kucoin but, in addition their representatives not being consistent, posting this one policy simply adds to the ambiguity and inconsistency I will point out why.
The factual issues:
1) Terms were changed on 8/13/20 as per the link itself I joined before this date as can be attested by the evidence, Aug. 3rd 2020. Interestingly enough any other organization I have been a member of immediately sends out changes to their membership base if they signed up before the changes, this did not happen, no one here has mentioned the simple fact that I joined on Aug. 3rd 2020, the terms changed and as a matter of fact it appears no one has been notified. If you have a bank account as to which this is easily compared simply recall how many times they have sent you those annoying updated T&C, this is why.
2) They have specific terminology on the kyc process and the outcomes, specifically there are 3 reference points as links I have presented in the original post that they sent me themselves in the first response to my email support request, in contract law this is what is called ambiguity in which you follow the most referenced points in case of contradictions such as these. Again in these specific references just like the link you sent with the excerpt in which I extracted the definition of "Services" and included the excerpt from the same link, there is not even the word or mention of withdraw.
3) They define the "Services" which clearly does not include withdrawals or deposits but, here it is right from the link you sent:
Our Services
KuCoin provides you with a simple and convenient way to trade one type of Digital Token for another type of Digital Token. KuCoin provides you with a platform that matches your orders with open orders from other users of our Services. Users are not able to predetermine a trade with a particular user or with a particular account. Additionally, an order may be partially filled or may be filled by multiple matching orders. As of today, KuCoin does not provide services for the trading of legal tender (“Fiat Currency”) for Digital Tokens or vice versa. KuCoin does not provide services for the trading of one type of Fiat Currency for another type of Fiat Currency.
4) So going by their own rules on restrictions of "Services" as you outlined above and incorporating their definition of "Services" there is no exclusion or explicit outline of withdrawal restriction, it is very clear that trading of any kind or type will be restricted which is what they did and I discovered being restricted upon attempting to trade, this is the only thing consistent about this whole event and actually in line with their own policies. Restricting withdrawals is not explicitly, nor clearly outlined or restricted in any policy that is written and available for review.
If you have a chance to review contract law please do because you will learn that ambiguity is a common issue that causes problems with many companies, this is why for example a civil lawsuit can be successful.
In this example kucoin has either intentionally or unintentionally made it confusing thus leaving you the customer to learn about contract law or simply hire a lawyer to review the contract. In either presentation of these anyone would be easily successful in proving lack of consistency in their actions. It cannot be expected of the customer to know the intentions without clear, concise and explicit terms, this is not that. Conclusively this leaves one to generate their own thoughts on these actions.