I've sent them an email, and I have a very loose theory.
I've got to find my scanner tomorrow, and if I do, I'll be posting an entertaining letter from a lawyer in Illinois who "kindly" makes a number of demands about a two year old thread on this site about people's experiences with some simulation in business school.
I don't dislike lawyers. If I did, I'd have to hate half my extended family. Which wouldn't be all that big a deal, since I don't really like most of them already anyway. But, generally speaking of course, I do dislike idiots. And it does seem like there are quite a few idiot lawyers who send me mail now and then because of something someone once said on BP.
Anyway, this particular lawyer is in Illinois, and assumes that (a) BP is a business, and that the discussion of posters on BP represents our "business activities", and (b) posters on BP discussing this simulation were somehow trying to "cause confusion", "dilute" their marks, or damage the trademark that she's entrusted to protect. I'm sure padding billable hours by spamming out boilerplate C&D's to every website that mention these terms (one is "simulation", the other is defined as "the top stone of a structure or wall.") is an honest effort to do that. The nifty part about her practice is that she also offers to help clients come up with "clever, unique and protectable" trademarks, which she will then "protect .. within budget."
As this recent and potentially destructive denial-of-service type assault of anonymous indexing spiders comes the day (or two) after I signed for the piece of registered mail she sent, and both are from the same immediate area geographically -- it's not impossible to imagine a relationship between the two.
When I post the letter, my letter, I'll also link the thread in question for the sake of reference. I mean, it hasn't been touched in two years, and was all of about eleven posts long, and her copy of said thread is at least a few months old -- so I'll want to make sure it's the same one so that we might discuss it. I'll need to do at least that before I "assure them in writing" of anything.