the blue screen is when computer encounters a critical error where it has to shut down.
The "badness" of blue screen depends on what caused it. if it was a bad driver, then that's just a software problem, no big deal.
but blue screen could also be cause by overheating, at which point, if you are getting blue screens you are likely to incur permanent heat damage of hardware.
So, the best idea is to figure out what is causing the blue screen and then fix it