EDIT: I am going to include some screenshots so that what I am seeing is clearer.
In this thread, these are the options I am seeing (under Iceweasel 20.0) beneath the question, my answer, and the subsequent answer.
In this thread, these are the options I am seeing beneath the question (i.e., the same as the question linked above) and the related answer (i.e., the same as the second answer).
It appears all new answers no longer appear to offer a “flag offensive” option. @dajare suggests in a comment below that the variation may be due to karma settings. The lack of a “flag offensive” option makes SPAM reporting impossible more tedious as we now have to use the close link and corresponding Reasons field as indicated below by @mariosv. It also appears to be impossible to flag a user for spamming, which would be even more useful. The option against answers appears to have been removed in only the last couple of weeks.