Why do internal, fake profiles on revebnation sit so high in their linking profile?

[Kendi]

I was researching the link profile of Reverbnation to understand where they get most of their links from and a number of these fake reverbnation profiles showed up that seem to be about drugs- is this spam?

Here are some examples:

http://www.reverbnation.com/fan/tramadolfordepression

http://www.reverbnation.com/page_object/page_object_bio/fan_1340318

There are about a dozen of these on their site.

Super curious and would love any feedback or knowledge that may be out there!

Thanks

[HiveDigitalInc]

ReverbNation has an incredible natural link profile that builds up a ton of authority. Spammers and hackers take advantage of this by setting up content on ReverbNation and then pointing tens of thousands of spam links directly at the pages. This allows them to rank temporarily.