I think it would be a good idea to have an integrated tipping service built into the site functionality. Think of it like an improved Reddit Gold system using Bitcoin Cash (BCH). BCH is a superior option for a tipping type platform, since transactions can be sent over the blockchain for about 1 penny and can confirm in a few seconds.
(this is a rough implementation to how I see it working, but could be altered a bit)
On any post, or reply comment, there will be a new option for "tip."
Users can tip from either their own tip balance, or by generating a direct QR code where they can send the tip to.
All tips goto Voat wallet combined balance
Users can withdrawal their tips through their profile page manually
Voat site keeps some % amount of tip amount commission, say 5-10% is ballpark in what I was thinking. So, say a user gets tipped $5, then withdrawal, Voat keeps 5% or 50 cent fee, user withdrawals $4.50
This would be a good way to reward good content and posts, and also help generate revenue for the site. It wouldn't be too complicated to make either, I could possible help a bit with that with providing adequate development services.
btw: This would not be possible with Bitcoin or Ethereum or Litecoin because the tx fees are too high. Bitcoin Cash network has almost free tx cost, so its negligible for microtransactions