If you mean the image threads here ... only if I have time or inclination, but usually, no. I did participate for a while, and I did go in and comment on a few that caught my eye. But in terms of time spent on the site, it's probably at the bottom of my priority list.
If you are talking about the "Today's New Uploads" on the home page of FAA, I check that whenever I upload a new piece. I just like to see how mine appears to viewers checking out that page. Found some amazing work by other artists that way.