I reported the account posting spam links to their own youtube channel under every post in the discuss sections of daily problems, but the account is still active a week later and continues to spam, and there seem to be multiple accounts created to spam the same message. See the same comment under every post:
https://leetcode.com/problems/maximum-product-subarray/discuss/841335/Simple-java-solution-with-explainationone-passconstant-space
https://leetcode.com/problems/maximum-product-subarray/discuss/841320/DP-and-Constant-Space-Solution-or-Video-Explanation
https://leetcode.com/problems/maximum-product-subarray/discuss/841314/Java-super-simple-short-solution-O(n)-faster-than-95
https://leetcode.com/problems/maximum-product-subarray/discuss/841292/Java-Simple-Easy-to-follow-Solution-w-video-explanation
https://leetcode.com/problems/maximum-product-subarray/discuss/841265/Simple-Java-Solution-or-Time-Complexity%3A-O(n)-or-Space-Complexity%3A-O(1)
https://leetcode.com/problems/maximum-product-subarray/discuss/841243/c%2B%2B-(8-ms)-dinamic
https://leetcode.com/problems/maximum-product-subarray/discuss/841224/Simple-solution-in-python3-using-idea-similar-to-Kadane's-algorithm

This guy is also posting the same content, but appears to be the only real account:
https://leetcode.com/anmolgulati10/
Here's the same link posted by him and likely upvoted by his puppet accounts:
https://leetcode.com/problems/maximum-product-subarray/discuss/841300/100-efficient-solution-c-simple-and-clean-on-solution
Spammers:
https://leetcode.com/gulshan31/
https://leetcode.com/codebashers10

Another suspicious account with upvotes on every post:
https://leetcode.com/learner18/