This is a problem that I notice a lot. Most folks will not do adequate research. Instead they repeat what they've heard. And unfortunately what they've heard is not always 100% correct. I go by "Trust but verify". I did a quick internet search and found a lot of data.
Here's a study thats show lowering cholesterol lowers risk of prostate cancer:
Here's one that shows higher levels of HDL lowers the risk of lower bowel cancer:
Here's one that shows that taking statin may increase the risk of cancer:
Here's the study that everyone is talking about in this thread. More research is required.
Personally, I won't take statins. I recently changed MY GP because my last doctor was all about total cholesterol and nothing else. We'd argue. In the end, I realized he wasn't going to change. The last blood test I had a total cholesterol of 237 and an HDL was 97. My VLDL was normal.
I eat clean. I exercise 6 days a week. And I focus on reducing stress in my life. In short, I'm not changing a thing...yet.
Our bodies are complex ecosystems. A good cholesterol level for one person may not be so good for another person. As far as I can tell there is no simple rule. Figure out what's right for your ecosystem and you'll be ahead of the game.