I do not know why electricpavlov went, but cphiII went on a little vacation. He is not on the leaderboard right now because if you do not enter web2.0calc.com for a period of time, you will be removed from the leaderboard. If you join again, you will be on the leaderboard again.
There is another saying on https://web2.0calc.com/questions/for-those-of-you-wondering-about-cphill-and-others
It's not just a little vacation. He hasn't posted for about a year now, check his profile. It's because of all those people who just randomly post ChatGPT-generated (and incorrect) answers, and those people who just post random things and need to go back to 1st grade to study 5 + 5. There are a lot of good answers here, and answers where someone just made an understandable mistake, but also lots of misinformation.