This is a timeline recognizing High Score World Record holders, whether they've submitted here or not. All that is needed in a video.
YouTuber rrvirus: 163 - November 19th, 2014 (Launch Day)
YouTuber ķģ“ģµ: 432 - November 20th, 2014
YouTuber Andy C83: 580 - November 24th, 2014
Youtuber BitStern: 647 - December 19th, 2014
David Nicholl: 721 - February 25th, 2015 1,001 - February 27th, 2015 1,175 - April 18th, 2015
Youtuber Blubbermeat: 1,267 - May 1st, 2015
Sam Handwich: 1,558 - November 14th, 2015
Martin Stotzer: 1,621 - March 5th, 2016 1,930 - April 2nd, 2016 2,107 - December 27th, 2016
Ronnie Weston: 2,173 - March 31st, 2018
Joshua Beesley: 2,506 - April 5th, 2020 2,769 - April 28th, 2020 3,303 - April 30th, 2020 3,557 - May 30th, 2020 3,713 - June 1st, 2020 4,195 - June 9th, 2020
Andrew Theis 4,232 - October 1st, 2022
And that's where the record stands today. If you have any evidence of other records, please say so. I will update this if another record is broken. Good luck to all who try.
There are almost certainly players in the early days that belong on this list, but I can't find many quality videos from the 2014-2015 era.