Nothing is wrong with that...
If we complain against someone it is a requirement to put our name in it, if we are afraid then we will look like a coward and unsure about our complain or just making a story...
Anyway, I have reported so many and I have no problem with that, and it's just your email and not your password and :
If someone's report is found wrong or fake and his accuracy is less than say 60%, he can be punish by banning.
And do you know we can put fake email in our profile, a non-existing one like
123@xxx.vc etc.
So revealing email is not a deterrent.