Getting warning that hard link count is wrong

Linux and Unix-Like Linux
1

I run a find command to search from root directory.

find / -inum 344334

The output gives the below warning:

find: WARNING: Hard link count is wrong for /proc/1. This may be a bug in your filesystem driver. Automatically turning on find's -noleaf option. Earlier results may have failed to include directories that should have been searched.

Also, all directories are having 2 hard link counts. I checked with the command

ls -li

I create a new directory with mkdir and see 2 link counts and when I search with inode number, I find only 1 directory file.
For regular files, the link count is fine.

---------- Post updated at 02:01 PM ---------- Previous update was at 01:42 PM ----------

A small change in my last command mentioned above. It is

ls -lid
2

That is the expected result of creating a new directory. Two entries, '.' for the directory itself, and '..' for its parent, are created.

3 
That is the expected result of creating a new directory. Two entries, '.' for the directory itself, and '..' for its parent, are created.

That means the 2 count signifies the directory and "."

Why that warning in the output of file command?