At the time the community deleted a spam message by flagging we can see that these unfortunately were already indexed by Google:
spam deleted within 5 min.: video - Where to Watch shootout at wadala full movie...
was already indexed by Google in the first minute after posting:
Further recent spam indexed by Google:
This is an issue as spammers may only post here to make their spam appear in search results because of the high rank of SE.
Is there any way we can prevent search engines from indexing spam?