I think you _could_ reclaim your own domain if you wanted. You'd want to have a banner at the top with a clear note directing people to the new domain for the compiler explorer, so that people realize immediately that you're not domain squatting. A few people might put up a stink, but I'm pretty confident that most people wouldn't mind, especially since the tool itself is so useful. The name, for those who don't know it as your last name, is fun, but it isn't the reason people use the tool. Eventually, over enough time, people would start remembering the new URL, and you could shrink or remove the banner (and/or put a note elsewhere on the page).

It’s such a memorable name for a tool like that. Other than losing your domain name to the topic, how do you feel about the de facto name?

To a far far lesser degree, I’ve experienced many examples of “you named it X but everyone at work calls it Y and now you have to live with that.” It used to really irk me for some reason.

It is fantastic name of an otherwise fantastic tool. The day I found it was your last name made me chuckle and liked it even more. And since I am here, thank you very much for it!

I always call it the compiler explorer but the url, as a sibling comment says, is memorable.

Now that’s a pretty cool origin story for a name. What a compliment!