I've run into something weird in my last couple of visits: I'll read to the end of a thread and see a post from me that has my user name in the text field, my .sig, and nothing else. And, of course, I didn't post it. There's an example here:
There has been at least one other, but I can' recall where. Doesn't happen in every thread I read. I've tried deleting the post, but, as you can see, the one in 54 Seaweed's memorial thread is still there. I thought I should report it. In the meantime, I'm off to change my password, just in case.