So you’ve got a pretty good blog following and people like your blog – well, at least your best friend and your mom assure you it is pretty good. But, your comment section remains an empty echo chamber. You’ve asked questions. You’ve begged for comments and yet there is a big ole’ goose egg in the box.
If you really want to get ‘em talking, you have to take off the gloves. Say something mean. Say something controversial. Say something people will have to be compelled to respond to.
Let me give you an example. If you are walking down the street in Boston, (not the friendliest of cities) and you say to someone, “Hey, nice tie.” He may give a half-hearted smile but he will more likely raise his eye brows and step quickly away. On the other hand, (and I’m not recommending that you try this) if you say, “That is the ugliest tie I have ever seen,” you are likely to get a very colorful response perhaps laden with some words I can’t repeat here.
I’m not suggesting that you randomly go around insulting people just to get a response. What I am saying is that an effective way to get people’s attention is to say something that’s hard for them to ignore.  Write about the reasons you hate Twitter or write about why you love Walmart. In other words, take a strong on stand on something. Open up the debate.
There are good reasons to do this with caution. You may not want to run the risk of offending your readers, especially if you are running a business. Or, you may not want to wade into online arguments with people. There are ways around this. You can write about a controversial topic but stay neutral. Find something that will get people talking. Find something that everyone can get upset about.
What’s a good barometer? Pay attention when you’re offline to what gets people gabbing.

Here are some other people’s thoughts on how to generate comments that you might find interesting:
6 Ways to generate more B2B Blog Comments

How to Generate Blog Comments