Hi Matic,
an idea for a better User Experience and to avoid huge data:
What about also giving the contributors that work on your database the option to "report closed venues" and/or "delete existing links" (e.g. when a venue is still open, but doesn´t provide a Facebook-page anymore) additional to "add changes"?!
Why? Already in this early stage I find plenty of rubbish what by the time will make the experience looking for a venue time-consuming and frustrating when all these dead cats hang around in your database...
Hey there!

Users now usually send me emails about closed inactive entities which then get deleted from our DB. You have a valid point there, I'll add your suggestion to our development plan. This is the type of feedback I value most, so I'd like to thank you for taking the time and writing it.
Hey Matic,
thanks for coming back that fast.
Next idea: set up a contest for users who may send "suggestions for improvement" and attract this with a price for the x best suggestions.
This way you pay a little, but will get the best ideas from the community. To me this smells like a win-win-situation that your developers & CEO will most probably like as much as the community to get even more involved & attracted by another way to earn VIB.