Here are a few ideas on how bloggers can mess with their readers
:
Use an animated feed icon like this guy
writes about. The idea is that the animation attracts visitor's attention to your blog feed but I think it is distracting and annoying. Observant readers will have noticed that I use an animated feed icon too. This is because
my icon uses slow animation and fade effects which I think does not make it as distracting. If you disagree then its ok because I like to mess with my readers

.
Make sure your comment form asks users for their website address. Also make sure that that website address is never displayed in user's comments
. Users eager for backlinks will place comments on your blog only to find that they have been duped and their comments don't include links to their sites
. A similar tactic is widely used on wordpress blogs where links in comments do not pass page rank because the blog software automatically inserts no-follow attributes.
Write a post supporting censorship and make sure that you enable moderated comments. Enthusiastic users will write lengthy comments only to find that their comments disappear once they press the submit button
. Some of them will even protest that their comments are not showing up without realising the bloody irony of the whole business
.