If you want to delete you account in those sites, go and request it there somehow. speedrun.com ownership is not related to those sites, no one here can help you.
O.D.W. You just described the plot of this masterpiece of a game: https://getramone.com/ (link is legit, you won't regret it, I promise)
This is one thing to refer to yourself as "we", but another thing entirely to refer to someone else as "we".
There isn't much anything exciting about it. I moderate around 30 games, but I also follow Celeste, which is much more popular than all of my games combined. So on the front page I usually see random runs from Celeste, plus 1-3 potential runs from other games I follow or moderate.
I "fixed" this by applying custom CSS rules to my user pages. In some smaller resolutions the text might still go out of the panel, but I didn't care about that.
I used the following rules in this pastebin: https://pastebin.com/ZrPUkRm7
The custom rules should be set on: https://www.speedrun.com/user/ https://www.speedrun.com/Oreo321/ <-- replace to your user name
Don't set those rules on the main domain.
I have no idea what are you talking about, but please read this first: https://www.speedrun.com/speedrunning/thread/6tgel