Have made it before.
Yes, it is safe.
Don't use store-bought pre-ground beef for this one, kids. You are begging for contamination. Buy a piece of beef and grind it yourself in the food processor.
Another good way to eat raw beef is to take a frozen steak, slice it very, very thinly, and serve it sort of semi-thawed with some kind of dipping sauce. I have had this in Japan and it is fantastic.
It's probably safe most of the time. However, I have a good friend who got a nasty case of parasites from eating raw beef, so if you go that route, you might want to de-worm yourself every once in a while, as people do for their pets.
Personally, I think the invention of cooking is one of man's greatest achievements, and I greatly enjoy the benefits it brings, such as no bugs and easier and more complete digestion.
Yes I have made it with my own grassfed beef steak. It think it very delicious and my mouth is watering right now for some.
Choose a filet. Chop it up finely with a chef's knife if you don't have a food processor. I think this method makes is look less like hamburger and is more appetizing. That is the way I did it. I like the texture. Add in some capers, worcestershire sauce, dijon mustard, italian parsley and season with salt and pepper.