Nothing significant happens. Are comments what you are after? If so, then the way to get comments is to get to know people here. Comment on the writing by persons you like, about subject you like, and the chances they'll comment on your stuff increases greatly.
You may want to look over your settings for comments to make sure they are to where you want them.
Doing some socializing in the forums is another way to get people to recognize you, and want to get to know you.
Myself, I'm not really into comments at all. I used to be, but I found that if I used this site for socializing, I didn't keep a serious frame of mind to make good writing. And I want my pages to rank high in Google search for the topics, more than anything else.