Often times, somebody might ask about a problem they are having. For example, how to avoid having to update 200 pages when they make one minor change to layout. By suggesting frames, that would (arguably) be fixing the wrong problem (a nicer solution would be SSI). The same goes with suggesting a reformatting of one's hard drive if a background image was accidentally installed. See fix the wrong problem for a related topic.
This happens a lot on usenet, because most advice on Usenet is wrong.