I think the UI of that feature doesn't look good. The categories aren't listed row-by-row, and it just strikes through the text and the colored boxes don't fill for better visibility.
According to Sockfolder's posts: Add 500 to your score before hitting the bullet bill. If the number under R is 4 and the number under I is not 0, you spawn a line of ones.
I did a TAS that had a score of 53750. 53750+500=54250. Number under R is 4 and I is 2, but no line of ones or any lag. Is there something wrong with Sockfolder's post?
Using something like say, a hex editor?
I changed my speedrun.com username to lordlouckster, same as my YT channel name. But in leaderboards, it still has the old name, and clicking that name results in "user not found". The runs are still available in my profile of the new username.