What consequences can resetting the inode lead to?

Loss of the file or directory that this inode points to, as the operating system will not be able to find it by index.

If it is a critical system file, a failure of the operating system or individual applications may occur.

Zeroing out the inode for a device (/dev/...) may disrupt the operation of that device.

If the inode of a directory is zeroed out, all files and subdirectories within this directory will also become inaccessible.