On a single page more than 75% of the submissions are by unrated accounts.These bot accounts has made codeforces a joke. Long unending queues are not something regular users are used to. These unrated accounts are getting out of hands and something serious needs to be done.The cloudflare is not useful enough anymore.

Some suggestions from my side:

Add recaptcha but only during the time when there is no official contest happening and ongoing contest submissions should be prioritised over other submissions.

Add recaptcha IP based like if an IP is unactive on codeforces for over fixed amount of time (lets say half an hour) then it should fill the recaptcha again.