Well I don't know how long you have been on binance but it also doesn't matter, if you are on a centralized exchange there is no security on it you can trust, you are having less freedom even on your own funds, you risk your privacy protection and centralized exchange are the gate way for government involvement in Crypto-currency.

About the wallet address changes, the binance team must have put out to those accounts that would have wallet expiration, and I think owners of such accounts would have prepared themselves for this, the main purpose of this development is for security reasons, even though I feel it would have it inconveniences, but in the bigger picture it may be a positive thing.