Yes, it's true, even the Stake site often holds a giveaway on their Twitter for users who have verified KYC level 2 or above, maybe there are many other benefits that I don't know about on other sites, but still it all comes back to trusted sites because by playing on sites that are not trusted, it will be difficult to feel safe about the KYC that we have provided, that's why it's important to do research first
Not everyone is happy with giving their KYC but sometimes when playing honestly and everything is clean the casino won't ask us to complete KYC and even withdrawals can be made. So far what I've caught is when there are winners who are suspected by the system they will be asked to complete their KYC. to prevent fraud and money laundering, but even so you still have to prepare KYC so that at one time when the rules change then we won't have a problem with that KYC.
If users want to get a giveaway from Stake, it's better for them to immediately verify KYC level 2 so they can get the giveaway. But many still haven't done it because they don't chase the giveaway and just want to spend their time playing gambling. And if other users also want to catch giveaways from other casinos, they need to find a trusted and reputable casino to be calm about doing KYC.
But not everyone indeed likes doing KYC for various reasons. And one of the reasons is that they only gamble in their spare time and don't chase after winning, so casinos also need to understand that not everyone who gambles in their place is just after winning.