I think it would make most sense to have highscores as a separate section of the website. Something like highscores.speedrun.com or something similar. Have a link to it in the banner, and also the games can share the database, and each game's speedrun leaderboard can link to their equivalent highscore leaderboard, and vice-versa (if appropriate, obviously not all games even have a score system to begin with). Continuing to try getting the highscore.com domain just seems like a waste of effort, the guy is clearly not interested and would probably just be annoyed that you won't leave him alone. Besides that I'm more interested in the idea of having one collective umbrella for all video game records. Speedrun.com is already a well known and recognized name so having highscores be a subsection of the main site would probably make it a lot more successful.