Referenda Vote - staking.setValidatorCount

So I noticed that there is a vote going on.

Proposal Hash:
0x7de70fc8be782076d0b5772be77153d172a5381c72dd56d3385e25f62abf507e

Thought it would be a good idea to discuss this. I don’t really know the consequences of the options. Anyone have any more info? Are there any incentives to vote?