I don't mind posts in the Pictures forum counting towards a member's total post count. Why shouldn't it? Either we only count posts in the Mac related sections, or we should keep post count open to all forums.
Some people post in Community because this place isn't just about Macs, and some kind of general banter with other members about rather random topics is important for them. Some people who post in the Digital Photography forum mainly go there to post their own photos, and to look at other people's photos. Some people post a lot in the Pictures forum, because they want to see what other people have bought, or other people's desktops. People who like keeping up with current events will post in Current Events.
It's all general, non-Mac related banter, whether it's Current Events, Digital Photography, Console Games, PRSI, Music, Pictures, or anything not related to Macs. I don't see why some forums are treated differently from others in terms of post count. It almost seems like some are less respected and treated as spam, while others are OK because the "type" of banter has been approved.