Ball DeFi have removed the following migrator code from our contract which was forked out from Pancake swap. Although they might not do it, the code is still present in their contract and this code is exactly how all the rug pulls were done. You can see the following code is still present in pancake swap’s contract and github.
You can see the following migrator code is still present in the following link
Link: https://github.com/pancakeswap/pancake-farm/blob/master/contracts/MasterChef.solMigrator Code in Pancake Swap