re: Went down the ancestry rabbit hole: Why would someone change spelling of last name?

There was some distant relative in our family that was all into tracing the family tree many years ago. His research showed a family line of the last name of Oliver. Then the family lines suddenly turned to Revilo leaving just one Oliver by himself on the document. It turns out the remaining Oliver was gay so the rest of the family changed their name in reverse order of Oliver to Revilo! LOL