Ask HN: Own .com for 7 years, a new company trademarked my name registered .NET
Dropbox ran into a similar issue, but they were on the other side. They wanted Dropbox.com, but someone else owned it. They kept running under a similar name for a while, until Dropbox.com started advertising for their competitors. Then they threatened to sue Dropbox.com, and Dropbox.com sold the domain to them.There's a really interesting episode on the Tim Ferris podcast, where Drew Houston shares the story.