Suggestion box/Caixa de sugestões

BTW I recommend promoting the server more, there is no point on reseting server if you aren't working on promoting :x
Voting system isn't enough (still it's good)
I see many servers promoting through fb, so you can buy their promoting thing there, to share pages to a bigger population, also pointing server infos, like no mall and all-obtainable in-game, server status and rates.

You can promote servers on sharing in facebook private groups dedicated to tales of pirates private servers, don't forget to ALWAYS point that people can find infos in forum, keeping forum active is important and i often see people quitting because of the lack of information.

And Video event too, many people go search for private server on youtube looking for videos of the gameplay. You can always post that in facebook or wherever you can and show people server features and gameplay, you can even ask players to do that as an event.