Indeed or such inferior replications of genuine phrases are being scribed by non-humans with poor language, or individuals are merely sprinting them through google translate through a language, and back then to English, or merely perusing of a thesaurus to modify the wording.

The dastardly fiends! ;cP

Its obviously an attempt at piggy-backing off of the logic in others' posts safe in the knowledge that they just need to reword things around so as not to be called plagiarists.

The worst would be were these algorithms to succeed - and then up-vote themselves to bury the original content further down the list.

I feel that they should be treated as spam more than anything - but they cannot be auto-detected. Its a potential issue.

Perhaps disabling up-votes on users consistently flagged might be interesting.