Today I've received a letter from some users in Mathulike. https://e-learning.codienhanoi.edu.vn/profile/fccontra123 (the one who is having 15 points in this week for self-tick) and the two others (these accounts are controled by only 1 user) has sent harassing, bad-word messages to others. This has happen in the user for 3 times. I suggest Admin to delete these users forever.
* https://e-learning.codienhanoi.edu.vn/profile/fccontra123 (1)
* https://e-learning.codienhanoi.edu.vn/users/mikchiataydi
* https://e-learning.codienhanoi.edu.vn/users/superside
Not just only that, these accounts are used for self-tick to the main account (1). Because of self-tick, this account has over 500 point (although no one ticked for this account). This user also A\(^4\) for a lot. This is the evidence of what I had said:


(P/s: Also to Mathulike community, I and the moderators,coordinators had known and will know the users break the rules.)
If you can't see the photos, go to:
https://drive.google.com/file/d/1qgl3DbKR5h6381Hezw_18uSL9szlsH3y/view?usp=sharing
https://drive.google.com/file/d/1SZJ7ePliDkLii0QdOhsd_Gqvyz3Q6Msm/view?usp=sharing