Can you please guide me what is the term "stake"?
Bounty campaigns are using this word/term and reward the bounty participants with stakes.
I would really appreciate if anybody here could guide me. Why don't they reward the participants in crypto currency or their own token? Why use this term and not simple points?
Thanks
Stakes are some kind of coin, if their project runs POS, instead of calling a coin a "coin", you call them "stakes" see
https://en.wikipedia.org/wiki/Proof-of-stakebecause they are self-rewarding,
"a share or interest in a business, situation, or system.
"GM acquired a 50 per cent stake in Saab""
If you own a stake, you own a part of the mining process.
A stake behaves exactly like the way a normal coin would do, but you get interested on it, because of the mining your "stake" does.
Oh, so that is same as in "Proof of Stake". If participants have more stakes, they would definitely be able to do more data mining. But now another follow-up question is, does the specific coin, say WaqarCoin running bounty campaign, provide stake for the mining of WaqarCoin only? Or does it provide those stakes for mining some other cryptocurrency?
Secondly, is the stake usually equal to the amount of coins which can be mined by node?
Thirdly, it seems like that bounty campaigns are not directly rewarding the participants by giving them coins, rather they are providing them stakes which can be used to do more mining and thus earning more. Is that correct?
Lastly, if the above third point is correct, how do ICOs pay for allocating the stakes to the participants? Usually ICOs reserve 2% or something for the bounties, but how do the ICOs pay for the cost of stakes? If they simply pay in their tokens/coins, it would make complete sense to me. But how does that work with stakes?
Oh, so that is same as in "Proof of Stake". If participants have more stakes, they would definitely be able to do more data mining. But now another follow-up question is, does the specific coin, say WaqarCoin running bounty campaign, provide stake for the mining of WaqarCoin only? Or does it provide those stakes for mining some other cryptocurrency?
It's for the "WaqarCoin" only yes. Unless the developer rewards their participants in some other POS currency..
Secondly, is the stake usually equal to the amount of coins which can be mined by node?
"By node" you mean something like a masternode? I think that depends on what the thought process of the developer is, i don't think that has to be the case.
https://pivxmasternode.org/what-is-a-masternode/ < Here for example, they just made up the % relations.
Thirdly, it seems like that bounty campaigns are not directly rewarding the participants by giving them coins, rather they are providing them stakes which can be used to do more mining and thus earning more. Is that correct?
Yes, but these "Stakes" are also coins. You don't need to necessarily stake with them, you can also spend them. - Ofcourse long-term, it would be smarter to stake them, but they really behave the same as coins do in POW, in terms of sending, as far as i know.
Lastly, if the above third point is correct, how do ICOs pay for allocating the stakes to the participants? Usually ICOs reserve 2% or something for the bounties, but how do the ICOs pay for the cost of stakes? If they simply pay in their tokens/coins, it would make complete sense to me. But how does that work with stakes?
Exactly the same as you'd do with a POW coin as a developer. You simply premine a part of the coins, aka stakes, and give them out. People then can decide for themselves if they want to stake them, or not.
A bit more information about the mining process with a POS coin,
https://bitcoin.stackexchange.com/a/20037/59743