What you say with LDS is true with any records unless they are created at the time of the event and even then, especially with death records and census records certain information may or may not be correct. All records are only as accurate as the person giving the information and the one writing it down. Basically the information you find is pieces of a great puzzle. All records will give you places to look and ideas what you might find. Even family stories will help with finding your family. We have a grandmother that we have traced through census. With each year she changes her age one year she is older and the next younger. Her age between censuses varies 5-10 years. When was she born? To know for sure you need to find a birth record or church record made at or near the time of her birth and these may not always be found. When my grandmother died, the informant for the death certificate was her 10th born child. Who she recorded and knew to be her grandfather turned out to be her uncle. Family pictures can also help find family. Uncle Ben told us grandfather and grandmother were married in the state of Oregon and their names. Mom had a family picture of their 50th wedding anniverrsrary that had a date on back of it. I called Oregon and asked if they had a record for the marriage of Max Couture and Blanche Victoria Chute, daughter of Abraham Lincoln Chute married state of Oregon May 1912. They found the record, told us the cost and sent it to us. From a few facts that seemed like not much and a family picture we found a record and other family. We learned of a family history written by Abraham Lincoln Chute's father that takes the family back to about 1500 England. But it all started with a few names, state of Oregon and a family picture. Take and record all information you find no matter how small it may be, it might just be the key to open the window or door to finding your family and truth. Even if the information or story is wrong it will sooner or later lead to the truth.
Main thing you need to do is record all that you find. All you find, when looking for your family, no matter where it's found will lead you either to truth or to more questions but eventually all the puzzle pieces will come together. Family history research is a lifetime project and will not be completed in this life. Families are forever. Never give up. After many years of searching I have found my grandfather who was a coal miner and couldn't read or write. Jim took 3 years to find his own father who was born in a logging camp that no longer exist.