I think we should have a "Difficulty" column besides the "Problem" column so that we can see the average difficulty of the problems a person solves. (Sorry for my poor English) 
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MikeMirzayanov, please consider this.
Yes, i support this and it should have "TAGS" on this window also.
it makes sense :D
You can already see the difficulty of problems you (or others) solve using browser extensions.
tell the name
I use CF Analytics extension on chrome
CF Analytics
You can use discord bots like TLE to know the recent submissions and the difficulties of those problems.
that's irrelevant
I don't like this change, as I consider problem ratings trash. So please, if you do this at least make it optional.
Can you please elaborate technically why problem ratings are trash?
Perceived difficulty varies wildly depending on the person even for the same problem. As you get better, it's more a matter of "hard problems for you" instead of "hard problems".
Anecdotally, I've solved 3100 rating problems that were easier for me than some 2000 rated problems.
There's also the issue of most problems being div2 problems and those problems sometime having bias towards higher ratings than they "should have" due to most very experienced participants not participating in div2 rounds, leaving hard for div2 but easy and classic for experienced people problems almost unsolved.
Thanks for your advice , I ran out of problems but was also reluctant to try anything > 1800 . After reading this I tried a 1900 today morning and it seemed not so hard