I play on a small server with friends (which is cheaper than minefold atm), so at the moment I'm primarily looking at what value you can add by adding onto the ability for you guys to easily connect people, create maps, etc.

A few examples: Make it easier to categorise worlds that I might to join. For example, some servers are just creative, others are PvP, some can be survival, or others flat. Another option could be to be able to 'block' worlds (no more destroying/creation) so that anyone can jump in and run around words that people have created without asking for permission (thinking about the massive lotr one). Or, for example, making it easy to find spleef arenas for the occasional fun.

Being able to tag worlds is a simple start.

Best of luck guys. You guys have got something good going!