That may not actually be a necessity/major incentive.

Having a network where people can be rewarded for playtesting (perhaps by earning tokens which could then be redeemed for product from participating companies or further playtesting?) would be a great incentive, especially as far as getting quality feedback would go. Those tokens don't necessarily have to be blockchain based, but it seems like a potentially good idea (especially since we're all here on the steem blockchain discussing it).