As a user of hardware, not a hardware engineer, I wonder if I've seen these errors. Crashes -- I don't see any of those except the ones related to web browsers

As a user of hardware, not a hardware engineer, I wonder if I've seen these errors. Crashes -- I don't see any of those except the ones related to web browsers. I do a lot of long compiles and don't see any crashes from gcc. Corrupted data -- well, I've had several large downloads this year that didn't match the advertised md5 sums. I redownloaded and got matching checksums. Does any of this have to do with DRAM errors? There are lots of other potential sources of error in my computers. I could name half a dozen off the top of my head, but I'm sure I would only prove that I'm ignorant of another half dozen that are an order of magnitude more important than the ones I named. I await an answer to one question: who should care about these DRAM errors? Does that group include me?