The website already lists 1105 problems, and the creator doesn't claim that his hobby project is "*THE* Erdos Problems website"°

If you had a grasp how many publications are made every day, you'd know how hard it is already to read only the relevant ones.

And Erdős has such a prolific output and impact in the math community, that the Erdős number was created.

°) Which BTW can't be very old. From the FAQ

> This website was made by Thomas Bloom, a mathematician who likes to think about the problems Erdős posed. Technical assistance with setting up the code for the website was provided by ChatGPT ¹ and the logo was made by Midjourney. Since this website was launched, many people have helped with spotting typos and pointing to updated references, or suggesting new problems. These people are credited individually under each relevant problem.

¹) LOL