Need your opinions on flashing different roms/kernels often topic

Hello,what's your opinion on flashing different custom roms and kernels often? I mean every about 3 days or every week (sometimes even needed to flash on day two times because some roms or kernels are unstable and need reflashing) So what do you think about it? Does flashing somehow affecting phone? Or if you're flashing everything correctly (I mean for your specific phone model and etc..) won't have any affect for you phone?
Sorry for stupid question,but I discovered so much amazing roms on Nexus and I just want to try quite a lot of them,so that's why I'm curious to see your opinions about flashing roms.:cyclops: