There is a great deal of misinformation on Family Search, as well as other online sites. Much of it comes from the ease of copy/paste. They might be good places to gather information, but be sure to check against the vital records or with traditional family records such as people who record family members that they actually know. I’ve also found a great deal of misinfo on genealogy.com. None of the posts are vetted for accuracy, so you have to do it yourself. Even the VR might be off by mistakes of the recorder, but most are at least close.