1. Never heard of it
2. All but worthless
3. Probiotics are fine, but low cholesterol isn't necessarily a worthwhile goal.
4. DEFINITELY stay off statins, unless you have familial hypercholesterolaemia, in which case, do a ton of research before taking statins
Of course, these are the opinions of some dude on the internet, and interpreting them as medical advice would be just plain stupid.