Michael Jackson image question

days ago i put up an image of MJ from 1983 (the one currently added to the page) and it was continuously edited by Crestville and another user. the reason given was that it's "wiki policy" to use the most current image of a figure for the user page.

however you added a picture of MJ from 1984...and you yourself are an ADMIN.

so does any such policy exist? i'd like to know.