It does not verify uploaders’ identities or file integrity. Downloading any executable (IPA, EXE, DMG, APK) from Starfiles is strongly discouraged by security researchers.
"ipabnb" is a known entity or uploader within the IPA sharing community, often associated with providing tweaked apps for non-jailbroken and jailbroken devices.
Explain the for using Sideloadly or AltStore.
file, it is designed for non-jailbroken and jailbroken iOS users but cannot be installed via the official App Store. It requires sideloading tools such as: