Ghost messages on SLS?

The SLS website has a "Who Viewed Me" section. We routinely get messages from people(usually single males) who never viewed us. The way I see it there are several possibilities

  1. The "Who Viewed Me" section is just not accurate.
  2. There is a way to obfuscate when you view a profile? Maybe some higher paid tier on SLS where you can browse anonymously?
  3. People are just sending us messages without actually viewing our profile.

Does anyone know what is going on here?