You wrote: "I too am frustrated with the high level of inaccurate genealogical information on line. What is even more frustrating is that when you notify the people about the errors you are ignored. Recently I found a tree where the daughter was born 30 years before the parents. I could see the mistake happening but it should have been quickly be corrected."
You are describing the legacy of Ancestry's OneWorldTree database, left off by some longtime subscribers who didn't do a good job verifying and actualizing genealogical data of a great many ancestors, just copying and pasting off others' hard works, and post them for future uninformed subscribers.