Interesting:
I saw the wmd.gov domain name and wondered what that might be. So I visited http://www.wmd.gov. I looked at the bottom of the page and saw the "The Honorable Laurence H. Silberman". I thought, "Hmmm... where I have seen that name before?" Then it was "OMG!".
It was Silberman who wrote the Majority decision in the D.C. Parker case. I quoted him here and here last week. The next day I quoted Paul Helmke, who my visitor was searching for, here. Helmke is President of the Brady Bunch and had issued a news release complaining that the opinion given by Silberman was "judicial activism".
So... someone browsing from the domain wmd.gov, where Silberman is the co-chairman, did a search of blogs for the name "Paul Helmke", who criticized Silberman. It's not "proof" but it's a plausible hypothesis that Silberman visited my blog.
If the hypothesis is true I hope he was pleased with what I said about Helmke.