There is input from all of the team, not just me. @mawby @Steve are always in the background fixing technical things, @Josh42 is working with hobbyists and traders to inject more vitality into the forum and the rest of us are on here and doing things that aren't visible to everyone. There's the club email to monitor, there's the contact us section of the forum (The new home viagra spammers), some manual account moderation still has to happen and more. Which based on the fact we all have full time jobs, families, hobbies, some of the team run their own businesses, means that we can't be on everyday and spend endless hours trawling every single post on the forum. Post edits don't appear in the activity feed, so would the expectation that someone looks at every post every day in the classifieds to see if there has been an edit?
You mentioned that mods don't add much regular content to the forum but we shouldn't just be adding content for the sake of content. If your activity feed is just full of "I had beans for breakfast" added just for the sake of posting, people will just stop coming. I'd rather have a dozen interesting posts than 30 posts of pointless drivel.