Edit after rollback: Solution was to reload page. I saw only cached version w/o log in.
I still don't understand why I need >2k or >3k rep to do a review.
My main support for SO lies in editing questions to look more nice (code!) and maybe more clear (text, content) and of course in giving some votes. Since today I'm not able to do this any longer.
Edit: I'm know about that my edits are only suggestions and that I still can do this with <2k, but since today I have to sort all questions for activity and go through one by one. Old review section pointed more clear where sth. is to do and had been accessible by myself.