Do jurors enforce topic restrictions?

I was just called for jury duty. The alerted post wasn't a personal attack or anything of the sort, so I voted to leave it.

The alerter didn't raise the point, but I thought there was a good argument that the post was improper for where it was posted. My view, however, was that it was up to hosts to police topic restrictions, by locking off-topic threads, and that as a juror I shouldn't try to take that factor into account. (Presumably the hosts are much better acquainted with the nuances of what's proper in each group or forum.)

Should I broaden my view of jury duty and consider SOP's and the like (especially if the alerter DOES raise the point)?