Question 1: Who Operates This?
Is this a known company with a public identity, legal accountability, and contact information? Or is this a free tool with no clear operator? Is it a GitHub project maintained by someone's hobby? A startup you've never heard of? A product from a country where you can't easily pursue legal recourse?
Anonymous or opaque AI tools carry significantly higher risk than established providers. You don't know who you're trusting with your data. You don't know if the company will exist in six months. You don't know who the stakeholders are. Knowing who operates the tool you're using is the threshold question. If you cannot find clear information about who built this tool and who is responsible for it, you should have a high bar before you start sending your data through it.