Just another incentive for Steemit abusers to abuse through spam even more trying to farm rewards in new way.

Just wait and see new, massive spam farms being created to fish through cross posting on trash and/or plagiarism posts.

Don't count on communities preventing it. Most of them have never introduce dany considerate and/or effective measures to deal with the abuse within them. Many just don't care. Other have been created to abuse by themselves.