The word 'Leader' in the Custom Title

I don’t know whom I should ask this. I found a strange and quite wondered when I typed the word Leader in my Custom User Title at My Sitepoint - > Edit Your Details and saved it then it was just converted to ‘******’. Why so? Does anyone else having same issue before? Wondering why this happens and also if there is a logic behind this to be converted.

Thanking you.

Words like leader and admin are not permitted in user titles because they could trick others into thinking that you are a moderator of the forum.

Ah… ok. Thank you very much raena for making me clear. BTW, can I see/read the words that cannot be used in user titles or the only two words ‘leader’ and ‘admin’ are not permitted?

The words are:
community
administrator
moderator
leader
co-founder
advisor
mentor
officer
employee
adviser
sitepoint
non-member
banned
non_member
admin

You will see that some of us are permitted to use those words cause we’re staff. For regular members, though, these are not permitted.

Thank you raena very much once again!