Hey

I'm trying to understand why would someone become a stellar validator. Let me explain

I know that the XLM are pre-mind and they are being released to the community at a 1% rate a year + the transactions fees are sent to the community pool.

My questions

If stellar is a non profit organization how are they paying their stuff. I know they got a donation of 3 million (dont think it's enough) but I don't see how that can help in the future. I will attach a link so you can understand who im talking about. Skip to 8:54

https://www.youtube.com/watch?v=X3Gj2nQZCNM

Can anybody become a validator? Why would they become a validator and i'm assuming they will need to use their computer to become one which means extra electricity cost. Why would they put in the extra work if they can just join the community pool and receive free XLM?

I hope someone can answer my question in normal english I watched the ''David Mazières: "The Stellar Consensus Protocol" | Talks at Google'' and I might be the dumbest person but I barely could understand what he was talking about

Regards

Ali