I was really interested in the service and wanted to check it out. It wont let me in without signing up. How do I know they are not a scam site or useless witho

I was really interested in the service and wanted to check it out. It wont let me in without signing up. How do I know they are not a scam site or useless without providing my information. Bad UX. If you want to do business, keep your front door open.