Papa, Papa! Thank You for rescuing our Slovekian village from poverty, I've never touched such juicy stake!
There is at least 5 posts per day of people not understanding xDai chain and/or the STAKE token, i suppose they didn't read the WP:
forum.poa.network
Go to Appendix C: POSDAO / ERC677-to-ERC677 bridge
example scenario and take a look at the example. You can see how different rewards add up for validators / delegators (on top of the 15% APR), how the model incentives a fair distribution and usage of the network, and, the most important part:
This network is made for real world usage and WILL run a major part of the blooming DeFi business, just to cover the electricity cost of running a validator node 24/7 puts the token price at ~5$ per STAKE. (While the staking parameters are low for the example, so is the number of validators, delegators and transaction volume, so everything evens out as this is all based of percentages)
That is ONLY TO BREAK EVEN IN ELECTRICITY COSTS. Assuming a 0.11 USD per kw/h and a 300w PC running for a month, and that a validator in a month got 5 STAKES of total rewards having only 1 delegator. The more delegators you have the more it will have to share its rewards with a min of 30% for the validator.
At any point only the top 19 validators by STAKE amount will be taken into consideration for the randomized validator selection, that means there is a huge incentive for each one to not only STAKE more but to keep growing the amount so it doesn't get knocked out, thus the need for delegators.
There is a ton of more information in the white paper so please read it before buying STAKE so you know how to play your tokens. This is not your average x100 pump then dump to 0.01, the xDai chain will be the backbone of the DeFi institutions (and anyone else that benefits for an stablecoin PoS blockchain THAT HAS THE SAME PRIVACY AS MONERO). Please write any criticism with arguments if you are going to FUD.
