I must say I find it curious that some people find the spindle moulder "scary". When I first used one square cutter blocks were legal (only just) and they really were scary, partly because the cast/forged cutters weighed a bit more than a bullet, but could certainly reach a deadly velocity if the bolt was loose and they came off. Nice thing about them, though was that you could attach 4 or even 6 cutters to a block to make a compound shape. The other thing which was legal then was the French cutter, a flat piece of steel held in a slot through the spindle with the profile gound at one end and a relief at the other (they only cut at one end) - they could come loose and rattle or worse they did occasionally break or bend, but I used ti be able to grind and sharpen one in 5 to 10 minutes which meant they were great for one-offs, although a couple of hundred feet and they were blunt! Fortunately (at least on safety grounds) they are both no more, and nowadays we are required to use safety blocks with either Shaw guards or a power feeder on spindle moulders. All of this means that the spindle's reputation as number finger remover is thankfully declining, although I'd agree with the comment that training is really a pre-requisite to safe and effective use.
A good book if you are using spindles ame wany a reference is Eric Stephenson's
"Spindle Moulder Handbook" (ISBN 0-85442-031-2 publ. Stobart-Davies circa £17.00), alternatively there is a good if less comprehensive section in F E Sherlock' s "MACHINE WOODWORKING TECHNOLOGY For Hand Woodworkers" (same web page: ISBN 0-85542-041-X publ. Stobart-Davies £6.95).
The only thing I've used a spindle for which is still a bit scary is ring fence work - kind of like using a guide bearing bit in a router in a table, the main difference being that your block can normally take a 40 or 50mm high "bite" and is 100 to 125mm in diameter - and unlike a router you generally do the full cut in one pass. Even there providing you've got a good heavy "sled" which keeps your fingers away from the cutterblock and holds the work firmly, and you are using a proper bonnet guard, it normally isn't too scary - just heavy work if you are doing a lot of them.
As a point of nomenclature, the spindle moulder is often referred to in English as a "spindle" whereas in the USA it is called a "shaper". Moulder in the UK means one of these:-
Above: Vonnegut 8in 4/S moulder circa 1948. These were a 1930s design many of which sutvived in use into the 1970s and 1980s
Below: Modern Weinig 4/S moulder
A four-sided moulder (or 4/S in shorthand) - completely different beast with very different tooling.
Scrit