A polite reminder is I believe a violation of the rules. Personally, I think it's cool that we make the top ten every week, with no chimes, no cheating, reminders or bribes.
I think it's cool too, but a reminder isn't violating the rules from my experience. TMS was watching Achaea very closely for a while because they -were- rewarding voting. They forced Achaea to stop that with a threat of removing it from TMS altogether. So, I think if Achaea was breaking any more rules they'd still be watching closely.
EDIT TO QUOTE
You CANNOT offer incentives or rewards to players for voting. That means you cannot give players items, experience, or anything else in return for votes. You cannot display different messages based on whether someone voted or not, or reward a player for voting by not showing messages. You cannot have a system that ‘nags’ a player about voting in response to whether they’ve voted or not unless participation in the system is totally voluntary with no tangible positive or negative effects for a player choosing to use or not use such a system. Such a system must also allow a player to easily opt out of it at any time, also with no positive or negative effect, and it must be off by default.
So you can give a reminder, but you can't take that reminder away if they've already voted, nor can you reward in any way. That means we -could- have a small, polite message at login along with the rest that you get saying, "Please remember to support us and vote for Armageddon!"