I was reading a discussion on one of those somewhat hot-topic issues, and I was shocked to see several ACs claiming that they were modding in that same discussion. Two of them (or possible the same one) were trolling, so I certainly hope that somehow their karma goes down to the point where they never get mod points again. But one of them was posting a positive contribution, so I was very disappointed to get the end and discover that they were breaking rule which seem to me like a very sensible one.
People, there's a reason you aren't supposed to mod in threads you participate in. That reason doesn't change just because you post anonymously. It isn't like I've never been modding in a topic and then really really wished I could comment on something. So I totally understand the desire, but if you can't control your impulses, then how are you ever going to be able to avoid committing the dreaded -1 Disagree Impulse Mod? I don't care what you do most of the time, but you put on your mod hat, you're supposed to exercise some self-control.
And if you really must post, then take the sacrifice of having your mods revoked. So see, there's already a system in place for handling the situations where you have modded, but then you want to post. Don't go making up your own! If your system were a good one, you probably would have invented slashdot. So unless you're CmdrTaco, just say no to commenting anonymously in discussions you have modded in.
In conclusion, if I were slashdot, I would look up your IPs and, if it were possible to connect you to the named accounts, I would ban you. Yes I would. So there.