The best thing you should do to protect your assets, is to have a separate wallet that you do not you for bounty, use it to store your valuable tokens and eth.
This is correct. Although there were no major risks if you'll expose your ETH address. Just for tight security purposes, if you have good amount of tokens in your personal wallet, it is better if you'll create another wallet intended only for bounty rewards. In that way your main wallet is secured. Just incase, always secure your private keys in a separate folder, you might miss and interchange the two then posted it in bounty thread.