As in all things, it depends. One thing this particular thing would depend on is what you know and what your intent is. My understanding is a HYIP is a fancy name for the first people in get profit while the last people in get screwed.
Is that your intent?
When you are a Bear of Very Little Brain, and you Think of Things, you find sometimes that a Thing which seemed very Thingish inside you is quite different when it gets out into the open and has other people looking at it.
--W. T. Pooh (aka A. A. Milne)