@bathsheba,
There aren't -- for the # you see at the top of the screen, usually it's inflated by bots. It isn't some 200+ people who aren't talking (probably); it's more likely to be Google bots.
Foxfyre -- I have thought of a solution for you. My take on it is that you want to vote topics down to clear them, but are concerned that you might have what is essentially buyer's remorse, e. g. that suddenly, somehow they will become interesting and you will have blown it.
Not to worry.
Here's all you do.
Before voting a topic down, if you think it will ever interest you, open up the topic and select to get emailed notifications. Then collapse the topic. You will get notifications but the topic will be cleared from your view. If it turns out the topic is interesting, you can vote it back up. If it is as unappealing as you first thought, just stop getting notifications.
I would not recommend doing this with every single topic you vote down as you would quickly become inundated with email notifications. If a topic about the carburetor for a 1973 Trans Am will not appeal to you, it's probably not going to suddenly become wonderful. Vote it down without a second thought and feel free to move on. But for other topics which might turn out well, try this method.
Oh and if you want to check the Politics "forum", just go to the Politics tag in any topic tagged as Politics (or find it on the Home Page) and click from there.
Finally, if topics are mistagged, feel free to make better tags for them. You need not scour the site and constantly look to improve tags, but if you see a bad tag, and you know of a better one, add a good tag! The site works a lot better if reasonable people do the tagging, and correct one another. If the Trans Am topic is tagged as
cars,autos,trans am then great! If it's tagged as
dumb question, well, you know what to do.
Hope this helps! Please try it!