IMO the top X runs should be manually re-timed. Inaccuracy should negligible if done correctly. All of these runs will be obsoleted soon anyway. The same person should re-time each one, preferably someone that has done manual timing before by frame counting in video editor. This has been done in other games when a load remover was introduced and we had no problems. The re-timed runs should have a note attached saying they were manually re-timed.

Cutscenes are staying, sorry. It's not trivial and I don't want to spend a lot of time on it.

Q1: better to not use dlc
Q2: yes, ask a mod to add it after youve completed a run
Q3: no
Q4: yes, ask a mod to add them

Underscores in urls look really ugly. Dashes would be better IMO.

Warning: Invalid argument supplied for foreach() in /home/pac/public_html/speedrun/individual_levels.php on line 81

The second player's name in co-op runs seems to get deleted randomly.

One feature I think would be great but shouldn't be a priority for a long time: A history slider so you can for example see who was #1 a year ago.

Here's a few suggestions and bugs I've noticed. You may be aware of most of these already.

Markdown in guides.

Only display "Tools Guides Saves Splits Modifications ROMHacks" if there's actually content there. Make a seperate submission page where you can submit these kind of things if it's hidden?

individual_levels page doesn't show the other co-op player, as seen here: http://www.speedrun.com/lcgol/individual_levels . Sometimes there's a random comma. Also players without a website account aren't displayed on that page.

The 'Tools' page should allow you to link an external url instead of uploading a file.

The 'Splits' page needs mime types set for .lss files. If user uploads one right now and downloads, they get plain text.