Can you keep buying bitcoin if you have already get hacked like twice or more in the past?
No, I don't do it anymore. Might there be something wrong that I did that cost of hacking my wallet and emptying it but this bad experience will affect our mindset which it lead to not making a wise decision, and possibly being hacked again. In this situation, I'd rather give up than take a risk again, and accept that Bitcoin investment is not meant for me.
Those who still can afford to lose more and believe that there is hope will have to continue. But of course, don't urge yourself to do it if there is doubt already in your mind otherwise this will lead to regrets.
First, if you are in that situation, you need to take the time to find out the cause of your bitcoin loss and fix it before deciding to buy it back. If you can't find the cause, you can ask for help from some other investors. But if you still don't find the reason for that problem and you feel bitcoin is not suitable for you then I agree with you that it is time we should stop with bitcoin. Even though it is a potential investment, if we just lose money or get hacked repeatedly without any benefit, there is no reason to continue. There are many other ways, many other investments for us to choose from, bitcoin is not the only asset.