In most cases they just provide a link to content on their page.
Why would I click on such a link? The one time that my computer got hit really hard by a virus was when I clicked on a blog pimp's link. I don't do that anymore.
If these blog pimps had IQ's above the freezing point of water they would provide some idea of what their blog was about along with the link. If someone told me that their particular blog focused on pro-life issues or political philosophy I might want to check it out. As it is I'm supposed to assume that just because they have the intellectual capability to create an account on FR that I'm necessarily interested in what they have to say.
In my humble opinion humblegunner is providing a much needed service in culling the weak from the herd of idiots that flock to FR. They're like moths who see the flame of reason and head for it, more out of instinct than thoughtful reflection, only to be burned by it when they get here.
Did you notice 99% of the responders on this thread appreciated the OP? How can that be bad for FR?
That's.. profound.