Why would they flag me if I open a bunch of accounts with different IPs using a VPN? How would they know I'm using a VPN?
Using a VPN doesn't mean you are safe and your IP address isn't traceable. Read this article,
Can you be tracked with a VPN?. There is not much VPN provider. So most likely, they have a list or some other way to detect VPN providers. Here is an important part.
The IP addresses of VPN servers aren't difficult to recognize — there are even databases that try to determine whether an IP belongs to a particular provider. When you access a website with a VPN on, it may be able to identify that you're using a VPN using your IP. However, this doesn't mean the website will know the identity of the person behind the IP address — just that they are using a VPN.
It seems although they wouldn't detect who are you but still they are able to know the traffic came from where. In this way, you just risking yourself I think. Binance has withdrawal limits without KYC, you can withdraw 2 BTC per day without verification. So at least you may do it once a day. Or you may look for some trusted person who will exchange for you on behalf of you who have verified account. As far as I know, withdrawal limits for the verified user are 100 BTC.
binance has withdrawal limits for 2 btc in us without kyc ?
According to the support section over at Binance US :
Complete Basic Verification: 5,000 USD equivalent in crypto each day.
Complete Advanced Verification: 1,000,000 USD equivalent in crypto each day.
Complete Fiat Account Verification: withdraw up to 5,000 USD with ACH or 7,500,000 USD with wire each time.
Without being Binance US, the rules are different (matches with your feedback):
Veritified account: withdraw 100BTC per 24h
Non-veritified account: withdraw 2BTC per 24h (Start from 2017/8/3 12:00AM, Beijing Time)
The problem that you're trying to run away from (tax and not being able to proof how you got them) is something that you will also deal whenever you finally decide to cash out on your profits. have you tried to ask your local tax office what are they thoughts, or what would you need to declare if you were to proft from BTC selling?
Again, even holding stablecoins, you will eventually have to tax the profit (you would only be "protected" from the ups/downs of BTC value). But then again, if you're a believer, why not.... HODL?