Cryptocurrencies have given rise to a new genre of social casinos based around virtual currency. Sites like Yay Casino are using blockchain to power their no-risk gaming platforms.

Unlike fiat-based social casinos, crypto variants often issue players tokens from their own coin/token system. These can be earned through play, daily bonuses, promotions and trading with others.

Some advantages to the crypto approach include cross-border accessibility since gambling laws don't apply. It also allows for integrated markets where players can potentially profit from token value changes.

Challenges include cryptocurrency's volatility and complex ecosystems that can confuse more casual gamers. Strong community features help mitigate this by fostering peer support networks.

If done right, crypto social casino have potential to further expand the market by appealing to cryptocurrency enthusiasts. But more information would be needed about Yay Casino's token design and games to evaluate their specific take on this emerging space.

That's about the extent of commentary I can provide based solely on Yay Casino's minimal login page. The site would need to be explored in more depth to offer a fuller perspective.