What's scary about that? If you're dead, you're dead. It doesn't matter if anyone remembers you once you're waste. That's the beauty of it. If we wouldn't remember Einstein, it wouldn't matter to him at all because he's dead. So there was no reason for him to be scared before his death in that regard. (Or in any regard, once you think about it, but that's a different topic.)
People forget you as soon as your post is a couple of minutes old anyway. There are exceptions to that, but they're really rare.
Don't live through the internet. It's a mistake.