Occasionally, Stack Exchange receives suggested edits that replace a valid answer with spam. One particular answer on ELL has received this treatment fifty-two times (1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52).
I pointed out this problem a while back, and J.R. locked the answer for one week. After he did so, the spam suggestions stopped for quite a while. Unfortunately, they started up again recently, targeting the very same answer! And this time, thanks to Robo-Reviewers™, the spambots finally succeeded and got an edit in.
Apparently we have a problem with users reviewing content without looking at it! One reviewer approved spam on this answer eight times (1 2 3 4 5 6 7 8). This user has approved 192 edits and rejected 5; clearly they aren't paying attention and need a review ban.
I'd like to encourage all reviewers to read what they're reviewing. Don't just click "approve"!