When we registered all the IntelliPoker.* domains two years ago, two had already been registered under .com and .net extensions. While .com was inactive,.net was a website promoting a "bot" program which was not available at the time. IntelliPoker.NET was listed in our "prohibited programs" section.
When we negotiated about the sale we made an agreement that the owner wouldn't pick up his activities again and deletes all pages, even from possible different domains. Still, as you can see with Google results, there are some older web pages which have listed or reviewed this program. After the deal the program was removed from our list of "prohibited programs".
We have discussed that issue in depth when deciding about the name of the poker school; common agreement was that while this is a suboptimal situation, the advantage of using such a high level domain, free trademark and more than 60 local domains names far outweighed the questions that would need to be answered at a later date.
Scotty