Users have found a way to circumvent spam filters and deceive reviewers with less-than-keen eyes for spam, by copying part of a legitimate post and adding a spam link. Can we better control this kind of spam? What possible solutions could be implemented to control this type of spam?
On submitting an answer, the system could check if at least 75% (more or less) of the answer exactly matches either the Markdown code or the rendered text of the question or another answer, and reject such an answer with a message similar to the following:
Oops! Your answer couldn't be submitted because:
- We're sorry, but as a spam prevention mechanism, we cannot accept answers with content mostly copied from (the question | another answer). Please add more content of your own.
As a side note, I will no longer add spam warnings to answers. I will add a comment to the same effect instead.
Well, I really liked your approach of adding a warning label to the post.
It just confused me on first sight, as I assumed the spammer itself included the warning. Which would have been quite weird.
I took the liberty of adjusting your warning label slightly to make it stand out more:
> Spam Warning > ------------ > This post contains an advertisement or is otherwise promotional, or contains a link to malicious content. We suggest that you ignore this post. > > It will soon be deleted by the community and/or moderators; you can help us by flagging this post. > > ---
I just don't know if it's such a good idea if everyone starts putting warning labels on other peoples posts.