I see the categories are "Myst" and "Console", not "PC" and "Console". Is that an accident or a shot at the console ports? (I have no opinion here, just curious.)

It's a holdover from when Myst and realMyst were categorized together on the same leaderboard; all versions of the game fell under the same leaderboard and it was never amended when realMyst got its own leaderboard.

Ah! Neat.