The Internet is filled with stupid things, and sometimes something happens that is so stupid it's just funny. This is one such example, and given how awful the 49ers season has been, I can't help but laugh at stupid stuff like this.
For people that aren't on Twitter, there are websites that claim to provide a value for your Twitter account. You enter it in, and after they crunch some numbers, they spit out a dollar value, and then will auto-tweet out the information. It's something that picked up steam in the early days of Twitter, but now is basically just spam.