Can this site be merged with answers.ros.org?
There doesn't seem to be a critical mass of users here. There is only a single question from this year that is on the top upvotes page, with all of 3 votes.
It can be more productive to put a question on answers.ros.org because there are more active users there, but then you lose the Gazebo developers. Cross-posting sometimes works.
If not a complete merging, maybe karma and user accounts could be pooled somehow?
There is this question from two years ago about trying to bootstrap karma http://answers.gazebosim.org/question/300/can-someone-with-15-karma-up-vote-a-few-of-the/, the user answered their own question and eventually got some more points, but of course no one else upvoted that question or answer. (trying to access their profile at http://answers.gazebosim.org/users/65/asomerville/ gives a 500 internal error currently, perhaps another argument for merging if maintaining this site is a burden)
I do find a lot of useful answers on this site but have no way to vote for them, and for the most part no one else either.