If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.
Why does my Karma score keep increasing when I don't do anything? It's a disincentive to post. . .?
I think tut has it right: old articles still get some votes. But why is it a disincentive? I'd think it would make you (slightly) more willing to take a risk and post something that might get downvoted, since you don't expect a marginal downvote to matter as much based on your background karma income.