Those of us who are subscribers have been accruing unused votes every month. TS describes them thus:
Votes allow you to vote on which features or content will be added to Glitch next. They have not yet been implemented in the game. Votes are only available to subscribers and unspent votes "roll over" or continue to accrue until used in a referendum.
It seems to me that there are some aspects of game mechanics that might be worth putting to a referendum: for example, the idea of having some mechanism for temporarily for locking one (or more) community garden plot to the Glitch who planted it and remains nearby.
For what it's worth, one of the reasons I subscribed was the appeal of having some direct say-so with respect to the way the game develops. I hope that the return to beta will give us an option to try that out so we can see how it works.