I have been doing Leetcode for around 10 to 11 months, and I have a couple of requests for Leetcode developers to consider:
Up Votes - Down VotesSort problems by Up Votes minus Down-Votes:
By sort problems by Up Votes - Down Votes, I mean somthing similar to how there is:

I think there should be a way to sort the problems by the number of upvotes minus the number of downvotes because some problems have a high acceptance rate, but the ratio of upvotes to downvotes is unlikeable (i.e., 2400 : 2239, 1234 : 2345). Someone might say that this isn't that useful for upvotes, and downvotes are people's opinions. Still, I can't entirely agree because, for someone new to Leetcode, it would be easier to decide what problem to do (Opinions are what make great stuff great).
Keyboard shortcut for submitting:
I think there should be a keyboard shortcut for submitting a solution in Leetcode because when I am editing my solution and want to keep checking whether it works for all test cases, I have to move my mouse to the Submit button. I know that run already has this, but I think that submit should as well (It would make life a lot easier).
How many problems a person has done per day:
I think that you or other users should be able to view how many problems you have done each day, not just the number of submissions that you have done. I think this would be a cool option for people to show off what they have done. I also understand why someone might not want people to view the number of problems they have done per day, so I think that users should be able to toggle whether they want people other than themselves to view the number of problems they have done. Without this right now, I am committing my problems to GitHub to see the number of problems I have done per day, but this is a manual and tedious job that I think Leetcode could quickly solve.
Thanks for looking through my comments on how Leetcode could improve its platform. If you have any ideas, feel free to shout them out in the chat :)