1. I also suffered memory loss, so sometimes I probably didn't know if it was the same ones mentioned again, especially as every statin seems to have at least two names (Atorvastatin/Lipitor, Simvastatin/Zocor, Rosuvastatin/Crestor, Cerivastatin/Lipobay, ...), plus memory loss in general really knocks your confidence in your own judgment, plus some of them can change a person's moods - I don't know if that happened to me (how would I?) but I know it happened to a close relative.
2. As far as I can recall (see point 1), they get you back on the same one again by saying that the muscle problems were more likely just a coincidence, so you should try it again. Then the second time, it's that it's a different dose or ingestion timing or manufacturer or whatever. Then after it fails again, you get persuaded to try a different statin because it's newer/more-tried-and-tested/fat-soluble/water-soluble/whatever, especially if it's referred to by the brand name and not a name ending in "statin". Then it's all good for a few days until you're curled up in a ball with the pain next to your bike at the side of the road again.
How about independent/arms-length testing, publishing all the clinical test data instead of mainly those that run to successful completion and, in the case of statins, of actually having tested the drugs in patients who were also demonstrably making the recommended lifestyle and diet exercise changes rather than an average vulnerable cohort? Or properly following up on studies like the 2004 Sinzinger and O'Grady pilot that found only a small minority of professional athletes could tolerate any statins?
But I did mention the problems I had, plus I've heard of plenty of others with similar problems and yet still our experience is denied and dismissed with comments like "the evidence we have at present overwhelmingly says that from a population perspective statins are a good thing" while I have very little confidence that most problem reports are getting to the manufacturers or regulators in a way that has any noticeable effect.