My account got banned again!!??

Half month ago, my account be banned with no reason, just say spam spam, I dont know what happen.  I follow your hint to open the Google  2-fas Auth.

Now I am sure no one can log in my account except me.  Today my account got banned , even these days i didnt send any message on any channles.  

So I am confused, why my account always be banned??

Please check my account. I joined a lot of channles and participeted many events. Please help to reactivite, thank you!

My account and email:  bh7135455ducai@163.com