I had a weird discovery regarding comments that I thought I'd share with you guys.
So I happened to check out this particular run made by a now deleted user: https://www.speedrun.com/pepsiman/run/7yljoekm
You'll notice this run has "comments disabled by the runner", and that's exactly what's weird about this, since I can 100% confirm the user in question existed on this site and was deleted waaay before comments were rolled out, meaning they never had the chance to disable comments for themselves.
I've checked a few other runs by deleted/non-linked users and sure enough, comments are disabled on them, and since they are "disabled by the runner", you effectively can't and won't ever be able to comment on them at all.
Now, I find this to be a great thing (since those comment sections could get unruly without an actual runner to moderate 'em), but it really makes me wonder why ELO made this opt-out for all the currently registered users when they made it "opt-in" (ie. off by default) for deleted users.
[quote=artman40]How can one abuse? To shield oneself from criticism.[/quote]
That is not an abuse, that's a personal choice.
...and even if you want to blast a person, the leaderboard's forums or the game's discord server would get you far more coverage than a run's comments, since noone is notified about them (not even the runner themselves).