Hello @Sanchez A very warm welcome to the forum community, It is a great question as someone new to the website.
If you would like to learn more about how TrustedHousesitters works and why we have such a great pet-loving community then you have come to the right place and I am sure that you will receive lots of helpful comments from other community members.
If you use the spyglass then there are lots of helpful topics to get you started.
This one topic has some information that I think you would find useful as to why sitters sit on the website for free:
Here is our how it works page: How it Works | Find a House Sitter | TrustedHousesitters.com
I am a sitter myself and can attest that the platform is an authentic way to find wonderful sitters to care for your pets and your home. I am sure that other members will reach out as well and reassure you.
If you have any more questions then please do not hesitate to let us know.