Yes indeed, one deleted https://chat.stackexchange.com/transcript/message/20688701#20688701
three still banned
https://math.stackexchange.com/users/35472/mhenni-benghorbal
https://math.stackexchange.com/users/42344/ilovemath
https://math.stackexchange.com/users/9003/amwhy
and two just gone from the website after ban
https://math.stackexchange.com/users/8581/babak-s
https://math.stackexchange.com/users/38839/amzoti