Robots on the forum?

[DeGugs]

I just noticed that the forum has 3 categories of people: "members" (those who signed up), "Guests" (those who haven't), and Robots! What are they? What purpose do they serve?

 

[Rhys]

Crawlers such as google, archive.org.

 

[zero35]

Crawlers collecting forum informations，after you will found out this forum fresh threads from such as google etc search engines