I've been really interested in basic income projects for a while now. The biggest positive in my view is that doing so should theoretically provide for the basics of someone to live, allowing them to put their labour, whether that be mental, physical, digital, or otherwise, to what they enjoy or find fulfillment in. This would hopefully allow people to take care of issues that arise more easily, create a more happy, healthy and fulfilled population. It's certainly an idealistic situation, but there are a lot of benefits from a variety of perspectives.
If you think about it, blockchain has already used this concept to some extent, with the whole crypto faucet ecosystem. If you showed up to click that button (and be bombarded with ads) you got a bit of BTC/LTC/DOGE etc... Not quite the same as basic income, but a bit similar.