Second this but the comment section should be and cannot be viewed by other people other than the Splinterlands devs and the main proposer.
The reason for this is to avoid harassment and influencing other people's votes. There is a link to the main proposer's hive post and people can voice out their opinions there. The comment section for the votes is more like anonymous.
I apologize if I cannot express myself properly. It is 1:40am now.
TLDR, I don't want the possible comment section to be another reddit/twitter/youtube comment section. I don't think influencing other people's opinion is good right before they vote.
I think it should be on the blockchain, stored with the Vote itself. However, it doesn't necessarily need to be prominent or focused, and keeping a short length would make sense too. Most people would probably let their vote stand for itself without spending too much time to comment.
However, for me, if I saw a large SPS holder was voting against, I think it is in the public interest to be able to see why?