It's ok to not know something. You don't have to share an opinion that has no basis.
If you've ever done multi-day outside activities in the cold, you learn really quick to not wear cotton socks or under layers. Your sweat is what makes you cold because cotton will no longer provide a warm layer. Wool still has air pockets and will keep you warmer and may save your life or limbs.
Are you going to be comfortable in wet wool? No, but you have a better chance of surviving and not getting frostbite.
That is still just one specific measure. They will also have a specific definition of what they consider spam. What I have found, admittedly anecdotally, is that the results just don't answer the search anymore. The results aren't spam they just aren't good.
DDG did have better results in one major instance for me in figuring out an error message that Google gave me literally no results. DDG has several appropriate answers that LED me to a solution. I don't think that will stay the case overall but Google does need to do better.