1. The founding team is non-anonymous
What about Bitcoin? The founder is anonymous and no one has know how the face of Satoshi Nakamoto, does Bitcoin is bad since it's anonymous? Nope.
2. ANN sponsors take a long time to register and have a certain merit value
Long or short time doesn't guarantee you, however bad project sometime has a long time to register especially they ask your KYC. Even merit is given for a good and high quality post, but many people still abuse it by sell his merit, it's subjective.
3. ANN logic is relatively complete, and the page is beautiful
4. Social media is complete
It's not a way to analyze how good or bad project of this tips, it's only a sign that the founder has more professional and dedication to create a project.