Sounds like it, and I'm sure it is sometimes... but it's also legitimate behavior from people struggling with guilt or self-actualization. At least as far as internal fraud detection, a lot of sites like these have had to re-think what kind of behavior is a red flag. For instance, it's also common for sellers to have multiple separate identities on these sites, where they may re-sell the same content but they act as totally different personalities. On any other site, like say Facebook, that would definitely be a fraud indicator. On adult sites.... less so!