Terms of Service says that you can't tell your players to write a "good review"; is saying "Give us 100 - do it!" not breaking this rule? Whether it was followed or not, they're still
telling them to write a review of 100/100.
I'm'a just quote the ToS for a second:
Server owners caught attempting to manipulate reviews or review results in any way (including, but not limited to: telling players to give a high score, telling players they must write a good review, writing multiple reviews on any server to inflate/deflate rankings, associating server score, number of review or server ranking with any server goal or event, blackmailing players in exchange for reviews) will receive a warning and/or suspension from the server listing.
Not to mention he was already caught breaking the "writing multiple reviews on any server to inflate/deflate rankings" rule when he spammed servers with 10/100 reviews. That's two infractions.