It's one of the great drawbacks of open source software. Developers don't get paid, miners walk away with massive profits, and the software (and Bitcoin) is a free market for anyone to try to earn money.
You are wearing a signature which is free, but it looks like a good service.
I saw this on the OP of the signature campaign:
This is a non-profit signature campaign launched to support a small project that I find very useful for every Bitcoiner, a project that has a great philosophy and that greatly values everyone who shares their views. You should love this if you like Buy & Sell peer-to-peer, No KYC, Non-Custodial!
I would love more and more initiatives like this. I know -and it makes sense- that people will prefer to get paid from a campaign, rather than do it for free. But we are in need of good services and showing to each other new options.